KOTEM 3D Core DemoTutorialKotem Technologies Inc.Ottawa, Ontario, Canadahttp://www.kotem.comImport- / export- / create entitiesCreate-Point-Open a CAD model -Store the model in “.MVS” format-Whisker-Import more CAD models beside the current one -Save the current view-port in “.BMP” format-Label-Import point clouds-Set model precisions or “re-mesh” the modelCreate-Line-Circle-Ellipse-Rectangle-Polygon-PolyLineCreate-Plane-Sphere-Cylinder-Cone-ToroidThe properties of the just created or the currently selected entities can be seen and modified in the Change tabs for more property pages!“property pages window”.Handling the viewVarious zoom functions for the viewUp to six clipping planes can be defined and enabled / disabled in each view-portVarious pan / rotate functions Enable / disable the “two-sided” for the viewvisualization of the curves / surfaces“Lock” the selection of Enable the visualization of Enable-Points -Points -Perspective-Curves -Curves -Transparency-Surfaces -Surfaces: shaded, triangle-mesh, wireframe, silhouette -Coordinate axes-Labels -Labels -Gradient background-Whiskers -WhiskersUndo / RedoHandling view-ports“view-movements” Set special view directions Split the view-port to two or four part!-orthographic view-no transparency-no wireframe, -orthographic view-gradient background -no transparency-wireframe+ silhouette only-normal background- Store the current view direction, position in a new ...
Store the current view direction, position in a new “camera entity” These viewsettings later can be recalled by double clicking on the cameraentity in the modeltree.
Basic editing functions
Invert selection Select none, select all Select window Select by pointing
Modify some attribute of the pointed geometry
Delete the pointed geometry
Show / hide entity properties window
Transform selected geometries dialog
Modify some attribute of the selected geometries
Start a “measure animation demo” on the pointed geometry (see the picture below for an example)
Delete selected geometries
Invert the orientation of the pointed curve or surface Invert the orientation of the selected curves and surfaces Automatically match the orientations! (This function also recognizes the shells – after executing this, if you use CTRL when pointing, the whole shell will reflect your current action [select/hide/invert orientation/delete/etc.])
Labels and Pointgeneration
The text of the label can be modified here
Create labels
You may generate regular point grids or random pointclouds on the selected curves and surfaces optionally with some “amplitude noise”
“Realtime apply” enables you to see the modified text on the graphical screen immediately while you are typing
“Create from selected” functions
After you have selected some geometries or point cloud, you may LS fit a “simple curve” or “simple surface” to them using these icons.
Then an errorstatistics dialog will be shown for your information.
Then you may browse the parameters of the just created simple geometry in the “Entity Properties” window.
Note: These functions can be used to recover the parameters of the nominal geometry from the measured points. Or to get more information about a BSpline surface for example, which seems to be a cone or a sphere, or a part of it, and we need their radius by numbers, not just their “sculptured shape”.
“Reverse engineering” functions
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If you enter a positive n here, you may limit the maximal edge length. (The approximate pointcloud diameter is shown for your information…)
After you have selected some geometries or point cloud, you may create triangle mesh from them (laler Bspline interpolation will be available too!)
Note1: The current working method of this function: “project the selected meshpoints into their LSplane, do Delauaytriangulization, go back to 3D, drop the triangles having a too long edge” – so the given point set must be “convex for a plane”, so use two half sphere instead of a full one… Note2: In this example one half of a hull meshed (The points are randomly arranged along the nominal hull with large “amplitude errors”. A gridarranged point cloud would result much lovelier result…)