DG Kernel Forum

The question was about resetting the frame. You are not happy about where the local frame is located relatively to the geometry. But for an arbitrary geometry there is no such thing as the default frame. You need to define it yourself either manually or in code. If you replace rotations and translat...

The above code assumes that descendants represent parts of a solid assembly, so the different surfaces have to remain aligned in the same way. Notice that the child entity is moved as a whole without modifying relative position of its local frame. If you need to move local frame for descendants also...

Again, why do we need to modify the geometry? Geometry itself is not aware of any frames. It is just a collection of coordinates, curves, surfaces. Say, if the object is a single point as a point set, then the geometry will have only three coordinates like (1,0,0) stored. Translation with IGeometric...

Similarly to usual frame movement the second rotation in transform.Rotate(0.25 * Math.PI, 0); transform.Rotate(0.25 * Math.PI, 2); transform.Translate(-1, -2, -3); of MoveGeometry() applies rotation relative to the current orientation of the frame achieved after the first rotation, not the initial o...

Please download today's 5549 update. We have added two new cases to InterfaceTests.IEntityTest. See the Samples\NET\C#\Tests\InterfaceTests\ project. To run make sure the top IEntityTest is selected on the left and click either TranslateLocalFrame or MoveLocalFrame at the bottom in Cases list. Trans...

Sure. Sorry, I should have mentioned that we are making some checks and tests before adding code snippets here.
Thank you for a great question

Just in case an educational primer for our dear newbie readers. There are several types of transformations: 1. 3D Viewing pan, rotate, zoom. These do not change anything in the model. It is a change in the point of view. It is handler by the renderer and does not require any coding. 2. Moving entiti...

Another option: If you either make your entity a child of an empty one and add an empty child or use frame of a child you would have the second frame to move the object around. A family of Entities move together when either frame is moved.

Hi RJD Surface of an entity is defined relative to the local frame. This is because the object can be moved frequently like during animation. This means that the local frame is baked into the definition (parameters) of the surface. So, if you need to change the local frame, changing the geometry (su...

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