OdGeShell Class

Class Hierarchy

Syntax

C++

class OdGeShell;

File

GeShell.h

Description

This class represents shell primitives.

Remarks

A shell is a set of faces, defined by a list of shell vertices. Shells can have regular faces and holes and disjoint regions. Shell objects contain vertex data, edge data and face data. Vertex data is defined by one array that is the list of face vertices. Edge data contains arrays of edge properties such as edge color, linetype, visibility etc. Face data is defined by an array of shell faces and arrays of face properties such as face color, normals, transparency, material etc.

Corresponding C++ library: TD_Ge

Group

OdGe Classes

Public Methods

	Name	Description
	OdGeShell	Default constructor for the OdGeShell class.

OdGeShell Data Members

	Name	Description
	edgeColors	An array of edges colors.
	edgeLayers	An array of edges layers.
	edgeLinetypes	An array of edges linetypes.
	edgeSelectionMarkers	An array of edges selection markers.
	edgeTrueColors	An array of edges true colors.
	edgeVisibilities	An array of edges visibilities.
	faceColors	An array of faces colors.
	faceLayers	An array of faces layers.
	faceMappers	An array of faces mappers.
	faceMaterials	An array of faces materials.
	faceNormals	An array of faces normal vectors.
	faces	An array of integer number that defines a list of shell faces. In a face list a particular face is defined be a set of number. The first number contains the number of vertices of the face and its sign indicates if the face is a hole or a regular face: if the face is a hole then its vertices number must be negative. A hole face must be coplanar and entirely in another face (not touching edges). For example, the face array {3,0,2,4,-3,1,0,5} represents two faces. The first is a regular face that consists of three vertices: vertex 0,... more
	faceSelectionMarkers	An array of faces selection markers.
	faceTransparencies	An array of faces transparencies.
	faceTrueColors	An array of faces true colors.
	faceVisibilities	An array of faces visibilities.
	textureCoords	An array of texture coordinates.
	vertexNormals	An array of vertex normal vectors.
	vertices	An array of vertices that are used to construct faces of the shell.

OdGeShell Methods

	Name	Description
	addFaceVertex	Adds a face vertex with a specified index to the face array.
	addVertex	Adds a vertex to the vertex array of the shell.
	draw	Draws the shell using the specified vectorization context.
	endFace	Ends face assembling. Writes the number of face vertices that have been added by the addFaceVertex() method.
	startFace	Starts face assembling. Sets the face index at the start position of a new face to be added and reserves place for the number of face vertices adding -1 or 1 values: -1 if a hole face is expected and 1 for a regular face.

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