Functions | |
void | Show_Camera_By_Volume (char *projection, float *xmin, float *xmax, float *ymin, float *ymax) |
void | PShow_Net_Camera_By_Volume (int count, HC_KEY const *keys, char *proj, float *xmin, float *xmax, float *ymin, float *ymax) |
void Show_Camera_By_Volume | ( | char * | projection, |
float * | xmin, | ||
float * | xmax, | ||
float * | ymin, | ||
float * | ymax | ||
) |
Returns the simple rectangular box in user data space as set in a previous call to Set_Camera_By_Volume().
projection | - Special constant—either "Perspective", "Orthographic", "Stretched", or an "oblique" form ( see Set_Camera_By_Volume() ). Passed by reference. Returned to user. |
xmin | - Minimum limit of what will be visible along the X-axis. Passed by reference. Returned to user. |
xmax | - Maximum limit of what will be visible along the X-axis. Passed by reference. Returned to user. |
ymin | - Minimum limit of what will be visible along the Y-axis. Passed by reference. Returned to user. |
ymax | - Maximum limit of what will be visible along the Y-axis. Passed by reference. Returned to user. |
No additional details. See Set_Camera_By_Volume()
void PShow_Net_Camera_By_Volume | ( | int | count, |
HC_KEY const * | keys, | ||
char * | proj, | ||
float * | xmin, | ||
float * | xmax, | ||
float * | ymin, | ||
float * | ymax | ||
) |
Similar to Show_Camera_By_Volume(), but returns the net effective camera along a discrete segment path.
count | - The size of pathkeys |
keys | - An array of HC_KEY's delineating a path of segments. |
projection | - Special constant—either "Perspective", "Orthographic", "Stretched", or an "oblique" form ( see Set_Camera_By_Volume() ). Passed by reference. Returned to user. |
xmin | - Minimum limit of what will be visible along the X-axis. Passed by reference. Returned to user. |
xmax | - Maximum limit of what will be visible along the X-axis. Passed by reference. Returned to user. |
ymin | - Minimum limit of what will be visible along the Y-axis. Passed by reference. Returned to user. |
ymax | - Maximum limit of what will be visible along the Y-axis. Passed by reference. Returned to user. |
As with all PShow_Net_* routines, pathkeys[0] represents the lowest (a.k.a the "most local" or "leaf"), and pathkeys[keycount-1] represents the highest segment. If the path is incomplete, missing segments are filled in if possible. Missing segments must be part of the same direct ancestry in order to be filled in. If the desired path contains an include link, the shortest unambiguous set of pathkeys would be [leaf, includelink, root], where includelink is the return value from Include_Segment().
By default, HOOPS will determine the Net attribute from the last specified key all the way to the root. If you add -1 at the end of the array, the PShow_Net routines will not proceed beyond the end of the last specified key.
No additional details. See Set_Camera_By_Volume().