HeightfieldTesselator

Inheritance:

Methods of HeightfieldTesselator:

Methods of Namable:

generate
NodePath HeightfieldTesselator::generate(void);

Description: Generates a tree of nodes that represents the heightfield. This can be reparented into the scene.

getElevation
double HeightfieldTesselator::get_elevation(double x, double y);

Description: Fetches the elevation at (x,y), where the input coordinate is specified in pixels. This ignores the current tesselation level and instead provides an accurate number. Linear blending is used for non-integral coordinates.

heightfield
PNMImage &HeightfieldTesselator::heightfield(void);

Description: Returns a reference to the heightfield (a PNMImage) contained inside the HeightfieldTesselator. You can use the reference to alter the heightfield.

setFocalPoint
void HeightfieldTesselator::set_focal_point(int x, int y);

Description: Sets the focal point. The tesselator generates high-resolution terrain around the focal point, and progressively lower and lower resolution terrain as you get farther away. The units are in pixels.

setHeightfield
bool HeightfieldTesselator::set_heightfield(Filename const &filename, PNMFileType *type = ((void *)(0)));

Description: Loads the specified greyscale image file into the heightfield.

setHorizontalScale
void HeightfieldTesselator::set_horizontal_scale(double h);

Description: Sets the horizontal scale. The default scale is 1.0, meaning that each pixel in the heightfield is 1x1 panda units wide.

setMaxTriangles
void HeightfieldTesselator::set_max_triangles(int n);

Description: Sets the max triangles per geom.

setPolyCount
void HeightfieldTesselator::set_poly_count(int n);

Description: Sets the polygon-count target. The tesselator usually manages to come within about 20% of the target, plus or minus.

setVerticalScale
void HeightfieldTesselator::set_vertical_scale(double v);

Description: Sets the vertical scale. The default scale is 255.0, meaning that each as the gray value ranges from (0-1), the elevation ranges from (0-255) feet.

setVisibilityRadius
void HeightfieldTesselator::set_visibility_radius(int r);

Description: Sets the visibility radius. Polygons that are completely outside the radius (relative to the focal point) are cropped away. The cropping is imperfect (all approximations are conservative), so this should be used in conjunction with a far clipping plane, fog, or some other visibility limiting mechanism. The units are in pixels.

clearName
void Namable::clear_name(void);

Description: Resets the Namable's name to empty.

getClassType
static TypeHandle Namable::get_class_type(void);

Undocumented function.

getName
string const &Namable::get_name(void) const;

Description:

hasName
bool Namable::has_name(void) const;

Description: Returns true if the Namable has a nonempty name set, false if the name is empty.

operator =
Namable &Namable::operator =(Namable const &other);

Description:

output
void Namable::output(ostream &out) const;

In the absence of any definition to the contrary, outputting a Namable will write out its name.
Description: Outputs the Namable. This function simply writes the name to the output stream; most Namable derivatives will probably redefine this.

setName
void Namable::set_name(string const &name);

Description: