source: trunk/packages/vizservers/nanovis/FlowBox.cpp @ 3630

Last change on this file since 3630 was 3630, checked in by ldelgass, 6 years ago

Nanovis refactoring to fix problems with scaling and multiple results.
Do rendering in world space to properly place and scale multiple data sets.
Also fix flows to reduce resets of animations. More work toward removing
Cg dependency. Fix panning to convert viewport coords to world coords.

  • Property svn:eol-style set to native
File size: 2.6 KB
Line 
1/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2/*
3 * Copyright (c) 2004-2013  HUBzero Foundation, LLC
4 *
5 * Authors:
6 *   Wei Qiao <qiaow@purdue.edu>
7 *   Insoo Woo <iwoo@purdue.edu>
8 *   George A. Howlett <gah@purdue.edu>
9 *   Leif Delgass <ldelgass@purdue.edu>
10 */
11
12#include <float.h>
13#include <assert.h>
14
15#include <vrmath/Vector3f.h>
16#include <vrmath/Vector4f.h>
17#include <vrmath/Matrix4x4d.h>
18
19#include "FlowBox.h"
20#include "Volume.h"
21#include "Trace.h"
22
23using namespace nv;
24using namespace vrmath;
25
26FlowBox::FlowBox(const char *name) :
27    _name(name)
28{
29    _sv.isHidden = false;
30    _sv.corner1.x = 0.0f;
31    _sv.corner1.y = 0.0f;
32    _sv.corner1.z = 0.0f;
33    _sv.corner2.x = 1.0f;
34    _sv.corner2.y = 1.0f;
35    _sv.corner2.z = 1.0f;
36    _sv.lineWidth = 1.2f;
37    _sv.color.r = _sv.color.b = _sv.color.g = _sv.color.a = 1.0f;
38}
39
40FlowBox::~FlowBox()
41{
42    TRACE("Freeing switches");
43    Rappture::FreeSwitches(_switches, &_sv, 0);
44}
45
46void
47FlowBox::getBounds(Vector3f& bboxMin,
48                   Vector3f& bboxMax) const
49{
50    bboxMin.set(_sv.corner1.x, _sv.corner1.y, _sv.corner1.z);
51    bboxMax.set(_sv.corner2.x, _sv.corner2.y, _sv.corner2.z);
52}
53
54void 
55FlowBox::render(Volume *vol)
56{
57    TRACE("Box: '%s'", _name.c_str());
58
59    glPushAttrib(GL_ENABLE_BIT);
60
61    glEnable(GL_DEPTH_TEST);
62    glDisable(GL_TEXTURE_2D);
63    glDisable(GL_BLEND);
64
65    glMatrixMode(GL_MODELVIEW);
66    glPushMatrix();
67
68    TRACE("box bounds %g,%g %g,%g %g,%g",
69          _sv.corner1.x, _sv.corner2.x,
70          _sv.corner1.y, _sv.corner2.y,
71          _sv.corner1.z, _sv.corner2.z);
72
73    float x0, y0, z0, x1, y1, z1;
74
75    x0 = _sv.corner1.x;
76    x1 = _sv.corner2.x;
77    y0 = _sv.corner1.y;
78    y1 = _sv.corner2.y;
79    z0 = _sv.corner1.z;
80    z1 = _sv.corner2.z;
81
82    glColor4d(_sv.color.r, _sv.color.g, _sv.color.b, _sv.color.a);
83    glLineWidth(_sv.lineWidth);
84    glBegin(GL_LINE_LOOP); 
85    {
86        glVertex3d(x0, y0, z0);
87        glVertex3d(x1, y0, z0);
88        glVertex3d(x1, y1, z0);
89        glVertex3d(x0, y1, z0);
90    }
91    glEnd();
92    glBegin(GL_LINE_LOOP);
93    {
94        glVertex3d(x0, y0, z1);
95        glVertex3d(x1, y0, z1);
96        glVertex3d(x1, y1, z1);
97        glVertex3d(x0, y1, z1);
98    }
99    glEnd();
100   
101    glBegin(GL_LINE_LOOP);
102    {
103        glVertex3d(x0, y0, z0);
104        glVertex3d(x0, y0, z1);
105        glVertex3d(x0, y1, z1);
106        glVertex3d(x0, y1, z0);
107    }
108    glEnd();
109   
110    glBegin(GL_LINE_LOOP);
111    {
112        glVertex3d(x1, y0, z0);
113        glVertex3d(x1, y0, z1);
114        glVertex3d(x1, y1, z1);
115        glVertex3d(x1, y1, z0);
116    }
117    glEnd();
118
119    glPopMatrix();
120    glPopAttrib();
121
122    assert(CheckGL(AT));
123}
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