Manual Modules MoGraph Other Objects and Tags Spline Mask
Spline Mask Basic Coord. ObjectObject Properties
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| The spline arrangement at the lower left were used to create the surrounding shapes. From top left: A union B; B subtract A; A intersect B; A subtract B. |
Use this setting to define how both splines, which should lie on the same plane, should be combined:
The splines will be added together.
The second spline in the Spline Mask will be subtracted from the first.
The first spline in the Spline Mask will be subtracted from the second.
The intersection of the two splines will remain.
Set this setting to reflect the same axis of the plane both splines lie on. For example: Both splines lie on the XY-plane, so Axis should be set to XY (along Z) (this only applies if the Spline Mask Object is still in the unmodified state in which it was created since its coordinate system will be used) in order to guarantee a flawless boole of the splines.
If this setting is active, a polygon layer will be created within the closed spline (another reason both splines should lie on the same plane). This is how the results in the image above were achieved. Depending on how many spline vertices are used, the resulting polygon can contain very many surfaces.
The algorithm has limits when dealing with segment vertices of both splines that lie exactly on top of each other (try using a circle spline and a cog wheel spline in the states in which they were created in conjunction with the Spline Mask). Rotating, scaling or moving the splines slightly can help.
A Spline Mask can contain several nested Spline Mask children. This method can be used to easily create complex shapes using simple primitive splines:
