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Revolution and General Extrusion Cross-Sections

SimMechanics™ interprets the coordinate matrices of Revolution and General Extrusion according to a set of rules. These rules ensure consistency across all Revolution and General Extrusion shapes.

Revolution Coordinates are [x z] Pairs

SimMechanics maps the cross-section that you specify onto the XZ plane of the solid reference frame. When you enter the coordinate matrix in the Cross-Section parameter of the Solid block, SimMechanics treats those coordinates as [X Z] pairs, in that order.

Revolution Axis Aligns with Z-Axis

SimMechanics revolves the cross-section that you specify about the Z axis of the solid reference frame. The revolution axis runs along the thickness of the revolution.

Revolution X-Coordinates Must Equal or Exceed Zero

The X coordinates of a revolution cross-section must be equal to or greater than zero. Negative X coordinates causes the cross-section to overlap during revolution. If you specify a cross-section with negative X coordinates, SimMechanics issues an error and the model does not simulate.

Extrusion Coordinates are [x y] Pairs

SimMechanics maps the cross-section that you specify onto the XY plane. When you enter the coordinate matrix in the Cross-Section parameter of the Solid block, SimMechanics treats those coordinates as [X Y] pairs, in that order.

Extrusion Axis Aligns with Z-Axis

SimMechanics extrudes the cross-section that you specify along the Z axis of the solid reference frame. The extrusion axis runs along the length of the extrusion.

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