Difference between revisions of "QCad/C2/Drawing-Methods-in-QCAD/English-timed"

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{| style="border-spacing:0;"
 
{| style="border-spacing:0;"
−
|'''Visual Cue'''
+
|'''Time'''
 
|'''Narration'''
 
|'''Narration'''
  
 
|-
 
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Show slide number 1
+
| 00.00
 +
| Hello and welcome back to another QCAD tutorial.  
  
−
(00-00:08)
 
  
 +
|-
 +
| 00.04
 +
| Drawing methods in QCAD and knowing coordinate system.
  
 +
|-
 +
|  00.09
 +
| Qcad uses Cartesian co-ordinate system, which consists of two numbered scales, called as x-axis, y-axis.
  
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''0.00 '''Hello and welcome back to another QCAD tutorial.
 
  
 +
|-
 +
|  00.17
 +
| These are perpendicular to each other. These axis do divide coordinate system into 4 quadrants.
  
−
'''0.04 '''Drawing methods in QCAD and knowing coordinate system.
 
  
 
|-
 
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Switch to slide number 2
+
|00.24
 +
|Your work in QCAD will mostly be in quadrant I
  
−
(Cartesian coordinate system) (00:09-00:33)
 
  
 +
|-
 +
|00.27
 +
|The point where these axis meet is called as absolute origin or the origin point.
  
 +
|-
 +
| 00.34
 +
| For this tutorial, I am using the GNU Linux operating system Ubuntu Version 10.04 LTS
  
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''0.09 '''Qcad uses Cartesian co-ordinate system, which consists of two numbered scales, called as x-axis, y-axis.
 
  
 +
|-
 +
|00.40
 +
|and QCAD Community Edition Version 2.0.5.0
  
−
'''0.17'''These are perpendicular to each other. These axis do divide coordinate system into 4 quadrants.
+
|-
 +
| 00.46
 +
| In this tutorial we will see
  
 +
|-
 +
|00.48
 +
| Cartesian coordinate system
  
−
'''0.24'''Your work in QCAD will mostly be in quadrant I
+
|-
 +
|00.51
 +
|How to use command line to draw objects
  
 +
|-
 +
|00.53
 +
|and different drawing methods available in QCAD
  
−
'''0.27 '''The point where these axis meet is called as absolute origin or the origin point.
+
|-
 +
| 00.56
 +
| Let's first see how to use command line to put in co-ordinates to draw points and draw objects of required measurements.
  
 
|-
 
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Switch to slide number 3
+
|01.06
 +
|Using the Cartesian coordinate system.
  
−
(Lesson Plan)(00:34-00:45).
+
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''0.34 '''For this tutorial, I am using the GNU Linux operating system Ubuntu Version 10.04 LTS
+
|1.08
 +
|Please have the QCAD application open in your system.
  
 +
|-
 +
|01.11
 +
| If you want to know how to install QCAD please refer to the earlier tutorial called as 'Introduction to QCAD'.
  
−
'''0.40 '''and QCAD Community Edition Version 2.0.5.0
+
|-
 +
|01.18
 +
|Which is available on spoken-tutorial website.
  
 
|-
 
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Slide number 3
+
|01.22
 +
|Once the application is open from the tool bar on left choose line tool- line with two points.
  
−
(Lesson Plan)(00:46-00:55)
+
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''0.46 '''In this tutorial we will see
+
|01.28
 +
|Now focus on the command prompt, because we are going to use command line to put in exact coordinates.
  
 +
|-
 +
|01.35
 +
|It is asking to 'specify first point' Let's enter 10 comma 10
  
−
'''0.48 '''Cartesian coordinate system
+
|-
 +
|01.41
 +
|We always add x axis value first and then y axis value.
  
−
'''0.51 '''How to use command line to draw objects
+
|-
−
 
+
|01.45
−
'''0.53 '''and different drawing methods available in QCAD
+
|What it is going to do is, it will add a point 10 units away from x and from y axis.
  
 
|-
 
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Switch to slide number 4
+
|01.53
 +
|Hit enter. See the point is entered in relation to this origin or absolute 0, 0
  
−
(Drawing methods)
 
  
−
(00:56-4:08)
+
|-
 +
|02:00
 +
|Which is 10 units away from x and 10 units away from y axis.
  
  
−
Switch to QCAD tool->
+
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''0.56 '''Let's first see how to use command line to put in co-ordinates to draw points and draw objects of required measurements.
+
|02.05
 +
| Now suppose I want to draw a horizontal line in this direction, going away from this pint. Say 10 units.
  
  
−
'''1.06''' Using the Cartesian coordinate system.
+
|-
 +
|02.13
 +
|For the next point, I will add 20,10
  
  
−
'''1.08 '''Please have the QCAD application open in your system.
+
|-
 +
|02.18
 +
|X-axis value is 20 because, this point the new point will always be in relation to this absolute zero.
  
 +
|-
 +
|2.27
 +
|So to meet this distance of 10 I will have to add 10 units to the earlier point's X-value.
  
−
'''1.11 '''If you want to know how to install QCAD please refer to the earlier tutorial called as 'Introduction to QCAD'.
+
|-
 +
|02.35
 +
|And Y value will not change so it will be 10 here.
  
  
−
'''1.18 '''Which is available on spoken-tutorial website.
+
|-
 +
|02.40
 +
|Now if I want to go vertical line downwards again of 10 units
  
 +
|-
 +
|02.46
 +
|for the next point at the command prompt I will put then say 20,0
  
−
'''1.22 '''Once the application is open from the tool bar on left choose line tool- line with two points.
+
|-
 +
|02.56
 +
|X-axis value won't change, Y-axis will be 20 units -ve from the earlier value. So it will be 0.
  
 +
|-
 +
|03.05
 +
|Now again to go horizontal in 9 O'clock direction for the next point I will put (showing on application so pause for 4 sec. 3:11-3:15) 10,0
  
−
'''1.28 '''Now focus on the command prompt, because we are going to use command line to put in exact coordinates.
+
|-
 +
|3.20
 +
|Here Y-axis won't change and X-axis will be -10.
  
 +
|-
 +
|3.26
 +
|In relation to the previously drawn point.
  
−
'''1.35 '''It is asking to 'specify first point' Let's enter 10 comma 10
+
|-
 +
|3.29
 +
|Now to close my drawing I can always put 'c' and hit enter or
  
  
−
'''1.41 '''We always add x axis value first and then y axis value.
+
|-
 +
|03.35
 +
|I can go back to my original point which was 10,10.
  
 +
|-
 +
|03.39
 +
|and it will close the drawing. This is how you draw using the command line input.
  
−
'''1.45 '''What it is going to do is, it will add a point 10 units away from x and from y axis.
 
  
 +
|-
 +
|03.45
 +
|You can draw any drawing by using this coordinate system by adding, subtracting absolute co-ordinates for any point or vertex between two segments.
  
−
'''1.53 '''Hit enter. See the point is entered in relation to this origin or absolute 0, 0
+
|-
 +
|03.56
 +
|Like I did to draw this 10 units.
  
 +
|-
 +
|04.00
 +
|But this is going to be little complicated.
  
−
'''2,00 '''Which is 10 units away from x and 10 units away from y axis.
+
|-
 +
|04.03
 +
|Rather QCAD offers three easy methods to draw objects with.
  
 +
|-
 +
| 04:09
 +
| First is Relative co-ordinates System,
  
−
'''2.05''' Now suppose I want to draw a horizontal line in this direction, going away from this pint. Say 10 units.
+
|-
 +
|04.12
 +
|It uses coordinates that are relative to the last point designated, rather than a 0,0 point of the drawing area.  
  
 +
|-
 +
|04.19
 +
|@ symbol is used to enter data using this system.
  
−
'''2.13''' For the next point, I will add 20,10
+
|-
 +
|04.26
 +
|Lets try drawing this previously drawn square using relative coordinate method.
  
  
−
'''2.18 '''X-axis value is 20 because, this point the new point will always be in relation to this absolute zero.
+
|-
 +
|04.30
 +
|Let me clear the drawing area
  
 +
|-
 +
|04.35
 +
|Go to back line tool- Line with two points.
  
−
'''2.27 '''So to meet this distance of 10 I will have to add 10 units to the earlier point's X-value.
+
|-
 +
|04.38
 +
|To specify first point at the command prompt enter 10,10- again x and y axis.
  
 +
|-
 +
|04.46
 +
|It is going to put point at 10,10 distance. For the next point now that we are using relative system we have to put '@' symbol.
  
−
'''2.35''' And Y value will not change so it will be 10 here.
 
  
 +
|-
 +
|04.57
 +
|Whenever we want to use relative system @ symbol is a must.
  
−
'''2.40 '''Now if I want to go vertical line downwards again of 10 units
+
|-
 +
|05.01
 +
|After that, I want to draw horizontal line in 3 O'clock direction of 10 units.
  
 +
|-
 +
|05.08
 +
|So X value is 10 so I put @10,0 because Y value is zero here.
  
−
'''2.46 '''for the next point at the command prompt I will put (showing on application so pause for 4 sec. 2:49-2:53) then say 20,0
+
|-
 +
|05.16
 +
|Now for the vertical line going in downward direction, again for relative I use @
  
 +
|-
 +
|05.24
 +
|Then X value is zero but Y becomes -10 because it is going in opposite direction that is why value is -ve here.
  
−
'''2.56 '''X-axis value won't change, Y-axis will be 20 units -ve from the earlier value. So it will be 0.
+
|-
 +
|05.36
 +
|For the next horizontal line in 9 O'clock direction, I say @
  
 +
|-
 +
|05.43
 +
|Now X axis is -ve, it is going in opposite direction in relation to the previously drawn point. -10,0
  
−
'''3.05 '''Now again to go horizontal in 9 O'clock direction for the next point I will put (showing on application so pause for 4 sec. 3:11-3:15) 10,0
+
|-
 +
|05.53
 +
|Now to close the drawing I can put 'C' and enter.
  
  
−
'''3.20 '''Here Y-axis won't change and X-axis will be -10.
+
|-
 +
|5.57
 +
|Or to go back to that original point. This case I say @ 0- X-axis is zero and Y is going in +ve direction so +10.
  
 +
|-
 +
|6.11
 +
|This is how you draw using relative coordinate method.
  
−
'''3.26 '''In relation to the previously drawn point.
+
|-
 +
| 06:16
 +
| Next is Relative Polar co-ordinate system
  
 +
|-
 +
|06.20
 +
|It relies on distance and angle relative to the last specified point.
  
−
'''3.29''' Now to close my drawing I can always put 'c' and hit enter or
 
  
 +
|-
 +
|06.24
 +
|Always it is +ve and represents distance away from the first point.
  
−
'''3.35 '''I can go back to my original point which was 10,10.
+
|-
 +
|06.30
 +
|Let's try and draw the Previously drawn square using this relative polar coordinate system.
  
  
−
'''3.39''' and it will close the drawing. This is how you draw using the command line input.
+
|-
 +
|06.36
 +
| In polar coordinate, right towards towards 3 O'clock is always default zero angle.
  
 +
|-
 +
|06.42
 +
|All other angles are calculated in anti-clockwise direction related to default zero.
  
−
'''3.45 '''You can draw any drawing by using this coordinate system by adding, subtracting absolute co-ordinates for any point or vertex between two segments.
+
|-
 +
|06.48
 +
|So let's go to line tool – again line with two points
  
 +
|-
 +
|06.52
 +
|at the command prompt specify first point as 10,10 -Enter. Point is drawn.
  
−
'''3.56 '''Like I did to draw this 10 units.
+
|-
 +
|07.00
 +
|Now to draw horizontal line of 10 units using relative polar coordinates. I first put @ symbol because it is relative method.
  
 +
|-
 +
|07.10
 +
|Then I say distance, I know which is 10
  
−
'''4.00''' But this is going to be little complicated.
 
  
 +
|-
 +
|7.14
 +
|<nowiki>I use this symbol (<)less than symbol “<”for angle</nowiki>
  
−
'''4.03 '''Rather QCAD offers three easy methods to draw objects with.
 
  
 
|-
 
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Switch to slide number 4
+
|7.23
 +
|<nowiki>I know angle is in 3 O'clock direction, which is zero. (@10<0)</nowiki>
  
−
(Drawing methods)
+
|-
 +
|7.28
 +
|so my horizontal line of 10 units is drawn.
  
−
(4:09-6:15)
+
|-
 +
|7.30
 +
|<nowiki>For the vertical line in downward direction I again put @10<270</nowiki>
  
 +
|-
 +
|7.37
 +
|and 270 as angle this time because anti-clockwise downward is 270
  
−
Switch to QCAD tool->
+
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''4.09 '''First is Relative co-ordinates System,
+
|7.50
 +
|for the next point horizontal line in 9 O'clock direction
  
 +
|-
 +
|07.54
 +
|<nowiki>I say @10<180, angle will be 180, as it is exactly opposite to the default zero position.</nowiki>
  
−
'''4.12 '''It uses coordinates that are relative to the last point designated, rather than a 0,0 point of the drawing area.  
+
|-
 +
|08.05
 +
|<nowiki>Lastly I can always put 'c' to close or else enter the point as @10<90, because it is going in upward direction.</nowiki>
  
 +
|-
 +
|08.16
 +
|This completes our drawing in Polar coordinate method.
  
−
'''4.19 '''@ symbol is used to enter data using this system.
+
|-
 +
| 08:19
 +
|Third is the Direct distance method
  
 +
|-
 +
|08.22
 +
|Which can be used to draw lines by specifying first point in relation to already drawn object using snapping tools.
  
−
'''4.26 '''Lets try drawing this previously drawn square using relative coordinate method.
 
  
 +
|-
 +
|8.30
 +
|By placing a cursor at that point and entering a distance value.
  
−
'''4.30'''Let me clear the drawing area
+
|-
 +
|8.35
 +
| Let's say in this drawing, if I want to put a horizontal line going in 3 O'clock direction exactly from this point.
  
 +
|-
 +
|8.43
 +
|I can do so by using this direct method.
  
−
'''4.35 '''Go to back line tool- Line with two points.
+
|-
 +
|8.50
 +
|I choose line- line with two points. Now I know exactly at what point I want line ahead
  
 +
|-
 +
|8.57
 +
|so from snapping options on the left tool bar I choose 'snap to endpoint' and then go on that point and left click to select the first point.
  
−
'''4.38 '''To specify first point at the command prompt enter 10,10- again x and y axis.
+
|-
 +
|9.09
 +
|Now in relation to this I want to draw horizontal line of 20 units.
  
 +
|-
 +
|9.15
 +
|So I use command line to specify my next point.
  
−
'''4.46 '''It is going to put point at 10,10 distance. For the next point now that we are using relative system we have to put '@' symbol.
+
|-
 +
|9.20
 +
|I can use relative polar coordinate system here.
  
  
−
'''4.57 '''Whenever we want to use relative system @ symbol is a must.
+
|-
 +
|9.24
 +
|<nowiki>Since it is relative I say @ now distance is 20 and in 3O'clock direction, which is default zero angle so I say @20<0</nowiki>
  
 +
|-
 +
|9.36
 +
|and Enter. The line is drawn.
  
−
'''5.01 '''After that, I want to draw horizontal line in 3 O'clock direction of 10 units.
+
|-
 +
|9.39
 +
|Now say I want vertical line of say 7 units going in 90 degrees direction.
  
 +
|-
 +
|9.46
 +
|I can use now relative coordinate method here.
  
−
'''5.08 '''So X value is 10 so I put @10,0 because Y value is zero here.
+
|-
 +
|9.52
 +
|and say @ (I know 7 is Y direction and X is zero)so 0,7
  
 +
|-
 +
|10.01
 +
|and I can use relative coordinate method to draw this vertical line.
  
−
'''5.16 '''Now for the vertical line going in downward direction, again for relative I use @
+
|-
 +
|10.07
 +
|Again if I want horizontal line going in 9 O'clock direction say 5 units away.
  
  
−
'''5.24 '''Then X value is zero but Y becomes -10 because it is going in opposite direction that is why value is -ve here.
+
|-
 +
|10.12
 +
|I can again use relative coordinate method.
  
 +
|-
 +
|10.12
 +
| At the command prompt I say @ -5 now because X value will be -ve comma 0, Y is zero.
  
−
'''5.36 '''For the next horizontal line in 9 O'clock direction, I say @
+
|-
 +
|10.18
 +
|Now I can close down this line, because I know the distance is 7
  
 +
|-
 +
|10.33
 +
|I can draw vertical line going towards 6 O'clock directions
  
−
'''5.43 '''Now X axis is -ve, it is going in opposite direction in relation to the previously drawn point. -10,0
+
|-
 +
|10.39
 +
|Once I know all the different methods I can draw objects with. I can use combination of any to draw objects.
  
 +
|-
 +
|10.46
 +
|Now to draw that vertical line, I can use relative polar coordinate.
  
−
'''5.53 '''Now to close the drawing I can put 'C' and enter.
+
|-
 +
|10.51
 +
|<nowiki>So I say @I know distance is 7, I use '<' symbol, since it is 6 O'clock direction it is going to be 270 </nowiki>
  
  
−
'''5.57 '''Or to go back to that original point. This case I say @ 0- X-axis is zero and Y is going in +ve direction so +10.
+
|-
 +
|11.00
 +
|This completes our drawing.
  
 +
|-
 +
|11.06
 +
|This is how you use different methods in QCAD.
  
−
'''6.11 '''This is how you draw using relative coordinate method.
+
|-
 +
|11.10
 +
|Now that you are familiar with drawing methods and the coordinates system in QCAD.
  
 
|-
 
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Switch to slide number 4
+
|11.15
 +
|Lets come to the to the ASSIGNMENT.
  
−
(Drawing methods)
+
|-
 +
|11.17
 +
|i would like you to draw diagram as shown in the figure.
  
−
(6:16-8:18)
+
|-
 +
|11.20
 +
|You can either use relative coordinate, relative polar, direct method or combination of any method to draw this.
  
 +
|-
 +
|  11.29
 +
| I would like to acknowledge the spoken tutorial project which is part of the talk to a teacher project.
  
−
Switch to QCAD tool->
+
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''6.16 '''Next is Relative Polar co-ordinate system
+
|11.33
−
 
+
|It is supported by the National Mission on Education through ICT, MHRD government of India.
−
 
+
−
'''6.20 '''It relies on distance and angle relative to the last specified point.
+
−
 
+
−
 
+
−
'''6.24 '''Always it is +ve and represents distance away from the first point.
+
−
 
+
−
'''6.30 '''Let's try and draw the Previously drawn square using this relative polar coordinate system.
+
−
 
+
−
 
+
−
'''6.36 '''In polar coordinate, right towards towards 3 O'clock is always default zero angle.
+
−
 
+
−
 
+
−
'''6.42 '''All other angles are calculated in anti-clockwise direction related to default zero.
+
−
 
+
−
 
+
−
'''6.48 '''So let's go to line tool – again line with two points
+
−
 
+
−
 
+
−
'''6.52 '''at the command prompt specify first point as 10,10 -Enter. Point is drawn.
+
−
 
+
−
 
+
−
'''7.00 '''Now to draw horizontal line of 10 units using relative polar coordinates. I first put @ symbol because it is relative method.
+
−
 
+
−
 
+
−
'''7.10 '''Then I say distance, I know which is 10
+
−
 
+
−
 
+
−
'''7.14 '''<nowiki>I use this symbol (<)less than symbol “<”for angle</nowiki>
+
−
 
+
−
 
+
−
'''7.23 '''<nowiki>I know angle is in 3 O'clock direction, which is zero. (@10<0)</nowiki>
+
−
 
+
−
 
+
−
'''7.28 '''so my horizontal line of 10 units is drawn.
+
−
 
+
−
 
+
−
'''7.30 '''<nowiki>For the vertical line in downward direction I again put @10<270</nowiki>
+
−
 
+
−
 
+
−
'''7.37''' and 270 as angle this time because anti-clockwise downward is 270
+
−
 
+
−
 
+
−
'''7.50 '''for the next point horizontal line in 9 O'clock direction
+
−
 
+
−
 
+
−
'''7.54 '''<nowiki>I say @10<180, angle will be 180, as it is exactly opposite to the default zero position.</nowiki>
+
−
 
+
−
 
+
−
'''8.05 '''<nowiki>Lastly I can always put 'c' to close or else enter the point as @10<90, because it is going in upward direction.</nowiki>
+
−
 
+
−
 
+
−
'''8.16 '''This completes our drawing in Polar coordinate method.
+
  
 
|-
 
|-
−
| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Switch to slide number 4
+
|11.40
−
 
+
|For more information on this please visit following website.  
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(Drawing methods)
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(8:19-11:09)
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Switch to QCAD tool->
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| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''8.19 '''Third is the Direct distance method
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'''8.22 '''Which can be used to draw lines by specifying first point in relation to already drawn object using snapping tools.
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'''8.30 '''By placing a cursor at that point and entering a distance value.
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'''8.35 '''Let's say in this drawing, if I want to put a horizontal line going in 3 O'clock direction exactly from this point.
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'''8.43 '''I can do so by using this direct method.
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'''8.50 '''I choose line- line with two points
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Now I know exactly at what point I want line ahead
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'''8.57 '''so from snapping options on the left tool bar I choose 'snap to endpoint' and then go on that point and left click to select the first point.
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'''9.09 '''Now in relation to this I want to draw horizontal line of 20 units.
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'''9.20 '''I can use relative polar coordinate system here.
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'''9.24 '''<nowiki>Since it is relative I say @ now distance is 20 and in 3O'clock direction, which is default zero angle so I say @20<0</nowiki>
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'''9.36 '''and Enter. The line is drawn.
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'''9.39 '''Now say I want vertical line of say 7 units going in 90 degrees direction.
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'''9.52 '''and say @ (I know 7 is Y direction and X is zero)so 0,7
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'''10.01 '''and I can use relative coordinate method to draw this vertical line.
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'''10.07'''Again if I want horizontal line going in 9 O'clock direction say 5 units away.
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'''10.18 '''Now I can close down this line, because I know the distance is 7
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'''10.39 '''Once I know all the different methods I can draw objects with. I can use combination of any to draw objects.
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'''10.46 '''Now to draw that vertical line, I can use relative polar coordinate.
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'''10.51 '''<nowiki>So I say @I know distance is 7, I use '<' symbol, since it is 6 O'clock direction it is going to be 270 </nowiki>
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'''11.00'''This completes our drawing.
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'''11.06 '''This is how you use different methods in QCAD.
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| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Switch to Slide 5
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|Thank you.
  
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(Assignment)
 
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(11:10-11:27)
 
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| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''11.10 '''Now that you are familiar with drawing methods and the coordinates system in QCAD.
 
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'''11.15 '''Lets come to the to the ASSIGNMENT.
 
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[[Image:]]
 
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'''11.17 '''i would like you to draw diagram as shown in the figure.
 
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'''11.20 '''You can either use relative coordinate, relative polar, direct method or combination of any method to draw this.
 
  
 
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| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Switch to Slide 6
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|11.47
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|Hope you are enjoying exploring QCAD
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(Acknowledgement)
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11:28-11:45)
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| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''11.29 '''I would like to acknowledge the spoken tutorial project which is part of the talk to a teacher project.
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'''11.33 '''It is supported by the National Mission on Education through ICT, MHRD government of India.
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'''11.40 '''For more information on this please visit following website.
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| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:none;padding:0.097cm;"| Switch to Slide 7
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|11.50
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|This is Leena signing off.  
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(11:46-11:52)
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| style="border-top:none;border-bottom:0.002cm solid #000000;border-left:0.002cm solid #000000;border-right:0.002cm solid #000000;padding:0.097cm;"| '''11.46 '''Thank you.
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'''11.47 '''Hope you are enjoying exploring QCAD
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'''11.50'''This is Leena signing off.  
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Revision as of 11:32, 29 December 2014

Time Narration
00.00 Hello and welcome back to another QCAD tutorial.


00.04 Drawing methods in QCAD and knowing coordinate system.
00.09 Qcad uses Cartesian co-ordinate system, which consists of two numbered scales, called as x-axis, y-axis.


00.17 These are perpendicular to each other. These axis do divide coordinate system into 4 quadrants.


00.24 Your work in QCAD will mostly be in quadrant I


00.27 The point where these axis meet is called as absolute origin or the origin point.
00.34 For this tutorial, I am using the GNU Linux operating system Ubuntu Version 10.04 LTS


00.40 and QCAD Community Edition Version 2.0.5.0
00.46 In this tutorial we will see
00.48 Cartesian coordinate system
00.51 How to use command line to draw objects
00.53 and different drawing methods available in QCAD
00.56 Let's first see how to use command line to put in co-ordinates to draw points and draw objects of required measurements.
01.06 Using the Cartesian coordinate system.
1.08 Please have the QCAD application open in your system.
01.11 If you want to know how to install QCAD please refer to the earlier tutorial called as 'Introduction to QCAD'.
01.18 Which is available on spoken-tutorial website.
01.22 Once the application is open from the tool bar on left choose line tool- line with two points.
01.28 Now focus on the command prompt, because we are going to use command line to put in exact coordinates.
01.35 It is asking to 'specify first point' Let's enter 10 comma 10
01.41 We always add x axis value first and then y axis value.
01.45 What it is going to do is, it will add a point 10 units away from x and from y axis.
01.53 Hit enter. See the point is entered in relation to this origin or absolute 0, 0


02:00 Which is 10 units away from x and 10 units away from y axis.


02.05 Now suppose I want to draw a horizontal line in this direction, going away from this pint. Say 10 units.


02.13 For the next point, I will add 20,10


02.18 X-axis value is 20 because, this point the new point will always be in relation to this absolute zero.
2.27 So to meet this distance of 10 I will have to add 10 units to the earlier point's X-value.
02.35 And Y value will not change so it will be 10 here.


02.40 Now if I want to go vertical line downwards again of 10 units
02.46 for the next point at the command prompt I will put then say 20,0
02.56 X-axis value won't change, Y-axis will be 20 units -ve from the earlier value. So it will be 0.
03.05 Now again to go horizontal in 9 O'clock direction for the next point I will put (showing on application so pause for 4 sec. 3:11-3:15) 10,0
3.20 Here Y-axis won't change and X-axis will be -10.
3.26 In relation to the previously drawn point.
3.29 Now to close my drawing I can always put 'c' and hit enter or


03.35 I can go back to my original point which was 10,10.
03.39 and it will close the drawing. This is how you draw using the command line input.


03.45 You can draw any drawing by using this coordinate system by adding, subtracting absolute co-ordinates for any point or vertex between two segments.
03.56 Like I did to draw this 10 units.
04.00 But this is going to be little complicated.
04.03 Rather QCAD offers three easy methods to draw objects with.
04:09 First is Relative co-ordinates System,
04.12 It uses coordinates that are relative to the last point designated, rather than a 0,0 point of the drawing area.
04.19 @ symbol is used to enter data using this system.
04.26 Lets try drawing this previously drawn square using relative coordinate method.


04.30 Let me clear the drawing area
04.35 Go to back line tool- Line with two points.
04.38 To specify first point at the command prompt enter 10,10- again x and y axis.
04.46 It is going to put point at 10,10 distance. For the next point now that we are using relative system we have to put '@' symbol.


04.57 Whenever we want to use relative system @ symbol is a must.
05.01 After that, I want to draw horizontal line in 3 O'clock direction of 10 units.
05.08 So X value is 10 so I put @10,0 because Y value is zero here.
05.16 Now for the vertical line going in downward direction, again for relative I use @
05.24 Then X value is zero but Y becomes -10 because it is going in opposite direction that is why value is -ve here.
05.36 For the next horizontal line in 9 O'clock direction, I say @
05.43 Now X axis is -ve, it is going in opposite direction in relation to the previously drawn point. -10,0
05.53 Now to close the drawing I can put 'C' and enter.


5.57 Or to go back to that original point. This case I say @ 0- X-axis is zero and Y is going in +ve direction so +10.
6.11 This is how you draw using relative coordinate method.
06:16 Next is Relative Polar co-ordinate system
06.20 It relies on distance and angle relative to the last specified point.


06.24 Always it is +ve and represents distance away from the first point.
06.30 Let's try and draw the Previously drawn square using this relative polar coordinate system.


06.36 In polar coordinate, right towards towards 3 O'clock is always default zero angle.
06.42 All other angles are calculated in anti-clockwise direction related to default zero.
06.48 So let's go to line tool – again line with two points
06.52 at the command prompt specify first point as 10,10 -Enter. Point is drawn.
07.00 Now to draw horizontal line of 10 units using relative polar coordinates. I first put @ symbol because it is relative method.
07.10 Then I say distance, I know which is 10


7.14 I use this symbol (<)less than symbol “<”for angle


7.23 I know angle is in 3 O'clock direction, which is zero. (@10<0)
7.28 so my horizontal line of 10 units is drawn.
7.30 For the vertical line in downward direction I again put @10<270
7.37 and 270 as angle this time because anti-clockwise downward is 270
7.50 for the next point horizontal line in 9 O'clock direction
07.54 I say @10<180, angle will be 180, as it is exactly opposite to the default zero position.
08.05 Lastly I can always put 'c' to close or else enter the point as @10<90, because it is going in upward direction.
08.16 This completes our drawing in Polar coordinate method.
08:19 Third is the Direct distance method
08.22 Which can be used to draw lines by specifying first point in relation to already drawn object using snapping tools.


8.30 By placing a cursor at that point and entering a distance value.
8.35 Let's say in this drawing, if I want to put a horizontal line going in 3 O'clock direction exactly from this point.
8.43 I can do so by using this direct method.
8.50 I choose line- line with two points. Now I know exactly at what point I want line ahead
8.57 so from snapping options on the left tool bar I choose 'snap to endpoint' and then go on that point and left click to select the first point.
9.09 Now in relation to this I want to draw horizontal line of 20 units.
9.15 So I use command line to specify my next point.
9.20 I can use relative polar coordinate system here.


9.24 Since it is relative I say @ now distance is 20 and in 3O'clock direction, which is default zero angle so I say @20<0
9.36 and Enter. The line is drawn.
9.39 Now say I want vertical line of say 7 units going in 90 degrees direction.
9.46 I can use now relative coordinate method here.
9.52 and say @ (I know 7 is Y direction and X is zero)so 0,7
10.01 and I can use relative coordinate method to draw this vertical line.
10.07 Again if I want horizontal line going in 9 O'clock direction say 5 units away.


10.12 I can again use relative coordinate method.
10.12 At the command prompt I say @ -5 now because X value will be -ve comma 0, Y is zero.
10.18 Now I can close down this line, because I know the distance is 7
10.33 I can draw vertical line going towards 6 O'clock directions
10.39 Once I know all the different methods I can draw objects with. I can use combination of any to draw objects.
10.46 Now to draw that vertical line, I can use relative polar coordinate.
10.51 So I say @I know distance is 7, I use '<' symbol, since it is 6 O'clock direction it is going to be 270


11.00 This completes our drawing.
11.06 This is how you use different methods in QCAD.
11.10 Now that you are familiar with drawing methods and the coordinates system in QCAD.
11.15 Lets come to the to the ASSIGNMENT.
11.17 i would like you to draw diagram as shown in the figure.
11.20 You can either use relative coordinate, relative polar, direct method or combination of any method to draw this.
11.29 I would like to acknowledge the spoken tutorial project which is part of the talk to a teacher project.
11.33 It is supported by the National Mission on Education through ICT, MHRD government of India.
11.40 For more information on this please visit following website.
11:46 Thank you.


11.47 Hope you are enjoying exploring QCAD
11.50 This is Leena signing off.

Contributors and Content Editors

Minal, Nancyvarkey, PoojaMoolya, Pratik kamble, Sandhya.np14

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