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/*
* Copyright 2010, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
namespace o3d {
%[
A ProcessedPath holds a series of 2D vector drawing commands (i.e.,
move-to, line-to, quad-to, cubic-to) and the results of processing
this series of commands into a triangle mesh for rendering on the
GPU. It is only an internal class; this functionality is exposed via
the o3djs.gpu2d library.
%]
[nocpp, include="core/cross/processed_path.h"] class ProcessedPath
: ObjectBase {
%[
Clears out all of the curve segments that have been added to this
path.
%]
[nodocs]
void Clear();
%[
Moves the pen to the given absolute X,Y coordinates. If a contour
isn't currently open on this path, one is opened.
\param x the x coordinate to move to
\param y the y coordinate to move to
%]
[nodocs]
void MoveTo(float x, float y);
%[
Draws a line from the current coordinates to the given absolute
X,Y coordinates.
\param x the x coordinate to draw a line to
\param y the y coordinate to draw a line to
%]
[nodocs]
void LineTo(float x, float y);
%[
Draws a quadratic curve from the current coordinates through the
given control point and end point, specified in absolute
coordinates.
\param cx the x coordinate of the quadratic's control point
\param cy the y coordinate of the quadratic's control point
\param x the x coordinate of the quadratic's end point
\param y the y coordinate of the quadratic's end point
%]
[nodocs]
void QuadraticTo(float cx, float cy, float x, float y);
%[
Draws a cubic curve from the current coordinates through the
given control points and end point, specified in absolute
coordinates.
\param c0x the x coordinate of the cubic's first control point
\param c0y the y coordinate of the cubic's first control point
\param c1x the x coordinate of the cubic's second control point
\param c1y the y coordinate of the cubic's second control point
\param x the x coordinate of the cubic's end point
\param y the y coordinate of the cubic's end point
%]
[nodocs]
void CubicTo(float c0x, float c0y,
float c1x, float c1y,
float x, float y);
%[
Closes the currently open contour on this path.
%]
[nodocs]
void Close();
%[
Creates the triangle mesh which will render the given curve
segments. There are two regions: exterior and interior. The
exterior region covers the portions containing the curve
segments. It has two associated fields: a 2D floating point field
for the positions, and a 3D floating point field for the
Loop/Blinn texture coordinates. The interior region has one 2D
floating point field for the positions. The contents of the fields
are organized for rendering as non-indexed triangles.
%]
[nodocs]
void CreateMesh(Field exterior_positions,
Field exterior_texture_coordinates,
Field interior_positions);
};
} // namespace o3d
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