Difference between revisions of "Inkscape/C2/Basics-of-Bezier-Tool/English-timed"

| Time

| Narration

| Welcome to the Spoken Tutorial on “'''Basics of Bezier tool'''” using '''Inkscape'''.

| In this tutorial we will learn to  

| Draw straight lines and closed shapes

| 0013

| Add, edit and delete nodes

| To record this tutorial, I am using

| '''Ubuntu Linux''' 12.04 OS

| '''Inkscape''' version 0.48.4

| Observe the 4 options in the '''Tool controls bar '''at the top left.

| There are 4 modes of drawing '''bezier curve'''.

| By default, the '''Create regular bezier path '''option is enabled'''.'''

| Click once on the canvas and move the cursor to the other end.

| Now '''right-click '''to complete the line.  

| The two end points of the line are called '''nodes. '''We will learn more about them a little later.

| 00:17

| Next, let us draw a triangle.  

| First draw a slanted line. Click once and draw another line at an angle.  

| Now click once more to draw a third line and join it with the starting '''node '''to complete the triangle.

| Next, we will draw a curved line using '''bezier tool.'''

| Click on the canvas to draw a straight line. Click again, hold and drag to form a curve.  

| Right-click to complete the curve.

| In a similar way, draw some more curve shapes on the canvas.  

| Remember these steps- Click and draw a straight line.  

| Click again, hold and drag to form a curve.

|  Then right-click to complete the curve.  

| Press '''Ctrl + A''' and clear the canvas before proceeding further.  

| Next let us learn how to draw a closed curved path.

| First draw a curved line on the canvas.  

| Then we release the mouse and move the cursor away from the end node of the curved line.

| If you click once and move the cursor, we see a straight path in red color. To make it as curve click and drag.

| Again at the end node the line curves as we move.  

| Again click once we see a straight path in red color. To make the straight line curve, click and drag

| Again at the end node the line curves as we move. Move the cursor and go back to the starting node and close the path.

| Go to '''Tool controls bar.''' Click on the second icon of the mode. This helps to create spiral paths and irregular shapes.

| Draw some irregular curves and close the path.  

|  Note we cannot draw curved lines in this mode.  

| Click on the drop down button.  

| There are 5 options here- '''None, Triangle in, Triangle out, Ellipse, From clipboard.'''

| The first option that is '''None''' does not give any effect. So we will move on to '''Triangle in. '''

| Click on it and draw a line on the '''canvas. '''

| Next click on '''Triangle out '''and''' '''draw a line on the canvas.  

| Click on the '''Ellipse''' and draw a line.  

| We will learn about the last option that is '''From clipboard''' in later tutorial.

|  Now, let us learn to add, edit and delete '''nodes'''.  

| Delete the lines on the '''canvas.'''

| Go to '''Tool controls bar.''' Change the '''Mode''' to '''regular path '''and '''Shape''' to '''None.'''

| Come back to the '''canvas''' and draw a rough human palm.

| Now click on the''' Node tool. '''

| Notice all the nodes in this figure are visible.

| Turn your attention to the '''Tools Controls bar.'''

| The first 6 icons here, helps to add and delete''' nodes''' and paths'''. '''

| Click on any segment. Notice both the nodes turn blue.

| Now select a smaller segment and repeat the above steps.

| You will see that a new node is added at the mid-point of the smaller segment.

| Now, select the newly added node.  

| Click on '''Delete node '''option. The node is now deleted.

| Click on any one of the '''nodes''' on the palm.  

| To make the '''bezier handle''' visible click on the last but one icon on the '''Tool controls bar. '''

| Now the '''bezier handles''' for the selected segment is visible.  

| If not, then just click on the segment and without releasing the mouse, move it a little.

| The segment will curve and the bezier handles will be visible now.

| Click on the '''handles '''to resize and rotate the selected '''node'''.

| In a similar way, modify the other '''nodes '''too.

| The next icon helps to join '''nodes.'''

| Observe there is an extra '''node''' on the index finger.  

| Now click on '''join node''' icon. Observe that the nodes are now joined together.

| The next icon helps to break path at selected '''nodes'''.  

| Let now break the connection between the thumb and the index finger.  

| So select the joining''' node''' in between and click on '''break path''' icon.

| Unselect the '''node. '''Then select it again and move it a little.  

|  To join them, select the same 2 '''nodes''' and click on the '''join selected end-nodes''' icon on the '''Tool controls bar. '''

| Click on the next icon i.e. '''Delete segment''' icon to remove the path or segment. Now the path is removed.  

| Press '''Ctrl + Z''' to undo this action

| Let me keep this hand aside. Click on the '''Node tool '''once again.

| Let us learn how to use next 4 icons on the '''Tool controls bar.'''

| These icons helps to edit the selected nodes.

| Using the '''Bezier tool '''draw an inverted '''U''' shape. Click on the '''Node''' '''tool.''' Observe there are 3 '''nodes.'''

| Select the top node and click on '''Make selected nodes corner''' icon on the '''Tool controls bar.'''

| This makes it as the corner node.  

| Click on the '''bezier handles''' and move them up and down to see the change.  

| Click on the next icon which makes the '''node''' symmetric.

| Click on the next icon which makes the '''node''' auto smooth.

| The next 2 icons works only on segments. So, select the left segment of the '''U '''shape and click on the first icon.

| As the tool tip says, the segment is now made into a straight line.

| Click on the '''bezier handle''' and try to move. You will see that we cannot make it curved.

| Click on the next icon to make it a curved line again.  

| Now move the '''bezier handles''' and  now we can make it into a curve shape.

| Click on the next icon to convert selected object to '''path.'''

| Click on the next icon to convert the '''stroke to path'''.  

| The next 2 icons helps to move the selected '''nodes''' in X and Y directions respectively.

| Click on the up and down arrows and observe the change.

| The next 2 icons works only if the path has clipping and masking effects.  

|  Let us summarize.  

 

| In this tutorial we learnt to

| Add, edit and delete nodes

| Here is an assignment for you

| Draw a flower with 5 petals, 1 stem and 2 leaves using bezier tool.

| Color the petals with pink color.

| Color the stem and leaves with green color.

| Your completed assignment should look like this.  

| 11:00

| The video available at the following link summarizes the Spoken Tutorial project. Pls watch it.  

| The Spoken Tutorial Project Team conducts workshops and gives certificates for those who pass an online test.  

| Spoken Tutorial Project is supported by NMEICT, MHRD, Government of India.  

| More information on this Mission is available at this link.