#include <CGAL/IO/Geomview_stream.h>
| |||
Introduces a geomview stream G with a camera that sees the
bounding box. If machine and login are non-null, geomview is
started on the remote machine.
|
At the moment not all classes of the CGAL kernel have output operators. 2D objects are embedded in the xy-plane.
| ||
| ||
| ||
Inserts the point p into the stream G. | ||
| ||
| ||
| ||
Inserts the point p into the stream G. | ||
| ||
| ||
| ||
Inserts the segment s into the stream G. | ||
| ||
| ||
| ||
Inserts the segment s into the stream G. | ||
| ||
| ||
| ||
Inserts the triangle t into the stream G. | ||
| ||
| ||
| ||
Inserts the triangle t into the stream G. | ||
| ||
| ||
| ||
Inserts the tetrahedron t into the stream G. | ||
| ||
| ||
Inserts the bounding box b into the stream G. | ||
| ||
| ||
Inserts the bounding box b into the stream G. |
At the moment input is only provided for points. The user has to select a point on the pick plane with the right mouse button. The pick plane can be moved anywhere with the left mouse button, before a point is entered.
| ||
| ||
| ||
Extracts the point p from the stream G. The point is echoed. |
At the moment input is only provided for points. The user has to select a point on the pickplane with the right mouse button. The pickplane can be moved anywhere with the left mouse button, before a point is entered.
| ||
| ||
| ||
Extracts the point p from the stream G. The point is echoed. |
| ||
| ||
| ||
Inserts the polyhedron P into the stream G. |
geomview distinguishes between edge and face colors. The edge color is at the same time the color of vertices.
| ||
| Makes c the color of vertices, edges and faces in subsequent IO operations. | |
|
| |
Changes the background color. Returns the old value. | ||
|
| |
Changes the vertex color. Returns the old value. | ||
|
| |
Changes the edge color. Returns the old value. | ||
|
| |
Changes the face color. Returns the old value. |
|
| Deletes all objects. |
|
| Positions the camera in a way that all objects can be seen. |
|
| |
Returns the line width. | ||
|
| |
Sets the line width to w. Returns the previous value. | ||
|
| |
Returns the radius of vertices. | ||
|
| |
Sets the radius of vertices to d. Returns the previous value. | ||
|
| |
Sets tracing on. The data that are sent to geomview are also sent to cerr. Returns the previous value. By default tracing is off. | ||
|
| Returns true iff tracing is on. |
The following functions are helpful if you develop your own insert and extract functions. The following functions allow to pass a string from geomview and to read data sent back by geomview.
| ||
| Inserts string s into the stream. | |
| ||
|
Extracts a string s from the stream.
Precondition: You have to allocate enough memory. | |
| ||
| Inserts integer i into the stream. Puts whitespace around if the stream is in ascii mode. | |
| ||
| Inserts double d into the stream. Puts whitespace around if the stream is in ascii mode. | |
|
| |
Returns true iff G is in binary mode. | ||
|
| Returns true iff G is in binary mode. |
|
| |
|
|
For convenience we offer the manipulators ascii and binary that can be inserted in the stream.
| ||
| Sets the stream in ascii mode. | |
| ||
| Sets the stream in binary mode. |
All insert operators construct expressions in gcl, the geomview comand language, which is a subset of LISP. These expressions are sent to geomview via the pipe. The extract operators notify interest for a certain kind of events. When such an event happens geomview sends a description of the event in gcl and the extract operator has to parse this expression.
In order to implement further insert and extract operators you should take a look at the implementation [Fab97] and at the geomview manual [Phi96].