The Spline button allows to draw a spline passing through specified points. The button 
is in the Editor tab under the section Draw. In the classical menu the command is under the Draw menu.
To draw a spline
| 1. | Click on the icon . |
| 2. | Click to show the first vertex or enter the coordinates via the dynamic input. |
| 3. | Click once at each position where you want a new vertex to be placed or enter data via the dynamic input. |
| 4. | Use Ctrl+Z to undo the last drawn part of a spline. |
| 5. | Finishing: |
| o | double left click. |
| o | right click. On the right click the following window will arise: |
| ▪ | Offset- allows precise positioning of the object relative to another object |
| ▪ | Double offset - allows precise positioning of the object relative to other objects |
| ▪ | Enter - finishes drawing the spline |
| ▪ | Cancel - removes the drawn spline |
| ▪ | Full screen - viewing in full-screen mode |
A spline has a set of properties which can be viewed and edited in the Properties panel:
Property |
Description |
|---|---|
Color |
Defines the color of the spline |
Layer |
Defines the layer which the spline belongs to. The property contains a list of all available on the drawing layers and allows to move the spline to another layer. |
Line Weight |
Defines the lineweight of the spline. Is selected from the standard values. You can turn the function of showing the lines according to their lineweight on or off. Each lineweight value corresponds to a number of pixels on the screen. The number of these pixels isn't changed while scaling in the program window. The scale of lineweighht display on the screen is set in the Visualization tab of the Options window. |
Linetype |
Defines the linetype of the spline. Is selected from the standard values. |
Linetype scale |
Sets the scale for the current linetype. By default it is 1. |
Degree |
Shows the degree of the spline. |
Fit points |
The number of fit points (or vertexes). |
Start tangent vector |
Coordinates X,Y,Z of a tangent in the start point. |
End tangent vector |
Coordinates X,Y,Z of a tangent in the end point. |
Note:
| • | this option is absent in Standard version |