OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-05 18:16:23 +03:00
Code Packages Releases Activity
occt/src/V3d/V3d_RectangularGrid.cxx
apl c357e42610 0024776: Visualization - inherit OpenGl_View from Graphic3d_CView 
Expose interface of OpenGl_View (OpenGL graphics rendering methods) to client code
and collecting all high-level API methods of application views in V3d_View class.

1) Exposing interface of OpenGl_View:

The OpenGl_View inherits from new class Graphic3d_CView.
Graphic3d_CView is an interface class that declares abstract methods for managing displayed structures,
display properties and a base layer code that implements computation
and management of HLR (or more broadly speaking view-depended) structures.

In new implementation it takes place of eliminated Visual3d_View.
As before the instance of Graphic3d_CView is still completely managed by V3d_View classes.
It can be accessed through V3d_View interface but normally this should not be required as all its methods are completely wrapped.

In more details, a concrete specialization of Graphic3d_CView is created and returned by graphical driver on request.
Right after creation the views is directly used for setting rendering properties and adding graphical structures to be displayed.

The rendering of graphics is possible after mapping a window and activating the view.
The direct setting of properties makes obsolete usage of intermediate structures with display parameter
like Visual3d_ContextView and etc (the whole package of Visual3d become redundant).

2) Collecting all high-level API methods of application views in V3d package:

The patch includes elimination of Visual3d layer.
All of its methods that could be previously used by application are now exposed and should be accessed on the level of V3d entities.
- Introduced new class Graphic3d_CView.
  This is a base class for render views.
  Made possible to specialize concrete instances of the class by graphical driver.
- Moved all methods managing rendering views into interface of Graphic3d_CView.
  The corresponding methods were removed from interface of graphical driver.

3) Eliminated Visual3d package:

- Logic of managing display of structures was put from Visual3d_ViewManager into Graphic3d_StructureManager.
- Removed Visual3d_View class. Logic of managing computed structures was put into base layer of Graphi3d_CView.
- Removed all intermediate structures for storing view parameters e.g. Visual3d_ContextView.
  All settings are kept by instances of Graphic3d_CView
- Removed Visual3d_Light intermediate class.
  All light properties are still stored in Graphic3d_CLight structure.
  The structure is directly access by instance of V3d_Light classes.
- Moved all needed enumerations into Graphic3d package.

4) Update package D3DHost to new changes.

5) Update code of OCCT samples to new changes.
2015-09-22 11:49:33 +03:00

353 lines
11 KiB
C++
Raw Blame History

// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
/***********************************************************************
FONCTION :
----------
Classe V3d_CircularGrid :
HISTORIQUE DES MODIFICATIONS :
--------------------------------
16-08-98 : CAL ; S3892. Ajout grilles 3d.
13-10-98 : CAL ; S3892. Ajout de la gestion de la taille des grilles 3d.
23-10-98 : CAL ; PRO 15885. Patch K4403 et K4404
03-11-98 : CAL ; PRO 16161. Patch K4418 et K4419
************************************************************************/
/*----------------------------------------------------------------------*/
/*
* Includes
*/
#include <Graphic3d_ArrayOfPoints.hxx>
#include <Graphic3d_ArrayOfSegments.hxx>
#include <Graphic3d_AspectLine3d.hxx>
#include <Graphic3d_AspectMarker3d.hxx>
#include <Graphic3d_AspectText3d.hxx>
#include <Graphic3d_Group.hxx>
#include <Graphic3d_Structure.hxx>
#include <Quantity_Color.hxx>
#include <Standard_Type.hxx>
#include <TColgp_SequenceOfPnt.hxx>
#include <TColStd_Array2OfReal.hxx>
#include <V3d_RectangularGrid.hxx>
#include <V3d_Viewer.hxx>
/*----------------------------------------------------------------------*/
/*
* Constant
*/
#define MYMINMAX 25.
#define MYFACTOR 50.
/*----------------------------------------------------------------------*/
V3d_RectangularGrid::V3d_RectangularGrid (const V3d_ViewerPointer& aViewer, const Quantity_Color& aColor, const Quantity_Color& aTenthColor)
: Aspect_RectangularGrid (1.,1.),
myStructure (new Graphic3d_Structure (aViewer->StructureManager())),
myGroup (myStructure->NewGroup()),
myViewer (aViewer),
myCurAreDefined (Standard_False)
{
myColor = aColor;
myTenthColor = aTenthColor;
myStructure->SetInfiniteState (Standard_True);
const Standard_Real step = 10.;
const Standard_Real gstep = step/MYFACTOR;
const Standard_Real size = 0.5*myViewer->DefaultViewSize();
SetGraphicValues (size, size, gstep);
SetXStep (step);
SetYStep (step);
}
void V3d_RectangularGrid::SetColors (const Quantity_Color& aColor, const Quantity_Color& aTenthColor)
{
if( myColor != aColor || myTenthColor != aTenthColor ) {
myColor = aColor;
myTenthColor = aTenthColor;
myCurAreDefined = Standard_False;
UpdateDisplay();
}
}
void V3d_RectangularGrid::Display ()
{
myStructure->SetDisplayPriority (1);
myStructure->Display();
}
void V3d_RectangularGrid::Erase () const
{
myStructure->Erase ();
}
Standard_Boolean V3d_RectangularGrid::IsDisplayed () const
{
return myStructure->IsDisplayed ();
}
void V3d_RectangularGrid::UpdateDisplay ()
{
gp_Ax3 ThePlane = myViewer->PrivilegedPlane ();
Standard_Boolean MakeTransform = Standard_False;
Standard_Real xl, yl, zl;
Standard_Real xdx, xdy, xdz;
Standard_Real ydx, ydy, ydz;
Standard_Real dx, dy, dz;
ThePlane.Location ().Coord (xl, yl, zl);
ThePlane.XDirection ().Coord (xdx, xdy, xdz);
ThePlane.YDirection ().Coord (ydx, ydy, ydz);
ThePlane.Direction ().Coord (dx, dy, dz);
if (! myCurAreDefined)
MakeTransform = Standard_True;
else {
if (RotationAngle() != myCurAngle || XOrigin() != myCurXo || YOrigin() != myCurYo)
MakeTransform = Standard_True;
if (! MakeTransform) {
Standard_Real curxl, curyl, curzl;
Standard_Real curxdx, curxdy, curxdz;
Standard_Real curydx, curydy, curydz;
Standard_Real curdx, curdy, curdz;
myCurViewPlane.Location ().Coord (curxl, curyl, curzl);
myCurViewPlane.XDirection ().Coord (curxdx, curxdy, curxdz);
myCurViewPlane.YDirection ().Coord (curydx, curydy, curydz);
myCurViewPlane.Direction ().Coord (curdx, curdy, curdz);
if (xl != curxl || yl != curyl || zl != curzl ||
xdx != curxdx || xdy != curxdy || xdz != curxdz ||
ydx != curydx || ydy != curydy || ydz != curydz ||
dx != curdx || dy != curdy || dz != curdz)
MakeTransform = Standard_True;
}
}
if (MakeTransform) {
const Standard_Real CosAlpha = Cos (RotationAngle ());
const Standard_Real SinAlpha = Sin (RotationAngle ());
TColStd_Array2OfReal Trsf (1, 4, 1, 4);
Trsf (4, 4) = 1.0;
Trsf (4, 1) = Trsf (4, 2) = Trsf (4, 3) = 0.0;
// Translation
Trsf (1, 4) = xl,
Trsf (2, 4) = yl,
Trsf (3, 4) = zl;
// Transformation of change of marker
Trsf (1, 1) = xdx,
Trsf (2, 1) = xdy,
Trsf (3, 1) = xdz,
Trsf (1, 2) = ydx,
Trsf (2, 2) = ydy,
Trsf (3, 2) = ydz,
Trsf (1, 3) = dx,
Trsf (2, 3) = dy,
Trsf (3, 3) = dz;
myStructure->SetTransform (Trsf, Graphic3d_TOC_REPLACE);
// Translation of the origin
Trsf (1, 4) = -XOrigin (),
Trsf (2, 4) = -YOrigin (),
Trsf (3, 4) = 0.0;
// Rotation Alpha around axis -Z
Trsf (1, 1) = CosAlpha,
Trsf (2, 1) = -SinAlpha,
Trsf (3, 1) = 0.0,
Trsf (1, 2) = SinAlpha,
Trsf (2, 2) = CosAlpha,
Trsf (3, 2) = 0.0,
Trsf (1, 3) = 0.0,
Trsf (2, 3) = 0.0,
Trsf (3, 3) = 1.0;
myStructure->SetTransform (Trsf,Graphic3d_TOC_POSTCONCATENATE);
myCurAngle = RotationAngle ();
myCurXo = XOrigin (), myCurYo = YOrigin ();
myCurViewPlane = ThePlane;
}
switch (DrawMode ())
{
default:
//case Aspect_GDM_Points:
DefinePoints ();
myCurDrawMode = Aspect_GDM_Points;
break;
case Aspect_GDM_Lines:
DefineLines ();
myCurDrawMode = Aspect_GDM_Lines;
break;
#ifdef IMP210100
case Aspect_GDM_None:
myCurDrawMode = Aspect_GDM_None;
break;
#endif
}
myCurAreDefined = Standard_True;
}
void V3d_RectangularGrid::DefineLines ()
{
const Standard_Real aXStep = XStep();
const Standard_Real aYStep = YStep();
const Standard_Boolean toUpdate = !myCurAreDefined
|| myCurDrawMode != Aspect_GDM_Lines
|| aXStep != myCurXStep
|| aYStep != myCurYStep;
if (!toUpdate)
{
return;
}
myGroup->Clear();
Handle(Graphic3d_AspectLine3d) LineAttrib = new Graphic3d_AspectLine3d ();
LineAttrib->SetColor (myColor);
LineAttrib->SetType (Aspect_TOL_SOLID);
LineAttrib->SetWidth (1.0);
Standard_Integer nblines;
Standard_Real xl, yl, zl = myOffSet;
TColgp_SequenceOfPnt aSeqLines, aSeqTenth;
// verticals
aSeqTenth.Append(gp_Pnt(0., -myYSize, -zl));
aSeqTenth.Append(gp_Pnt(0., myYSize, -zl));
for (nblines = 1, xl = aXStep; xl < myXSize; xl += aXStep, nblines++)
{
TColgp_SequenceOfPnt &aSeq = (Modulus(nblines, 10) != 0)? aSeqLines : aSeqTenth;
aSeq.Append(gp_Pnt( xl, -myYSize, -zl));
aSeq.Append(gp_Pnt( xl, myYSize, -zl));
aSeq.Append(gp_Pnt(-xl, -myYSize, -zl));
aSeq.Append(gp_Pnt(-xl, myYSize, -zl));
}
// horizontals
aSeqTenth.Append(gp_Pnt(-myXSize, 0., -zl));
aSeqTenth.Append(gp_Pnt( myXSize, 0., -zl));
for (nblines = 1, yl = aYStep; yl < myYSize; yl += aYStep, nblines++)
{
TColgp_SequenceOfPnt &aSeq = (Modulus(nblines, 10) != 0)? aSeqLines : aSeqTenth;
aSeq.Append(gp_Pnt(-myXSize, yl, -zl));
aSeq.Append(gp_Pnt( myXSize, yl, -zl));
aSeq.Append(gp_Pnt(-myXSize, -yl, -zl));
aSeq.Append(gp_Pnt( myXSize, -yl, -zl));
}
if (aSeqLines.Length())
{
LineAttrib->SetColor (myColor);
myGroup->SetPrimitivesAspect (LineAttrib);
const Standard_Integer nbv = aSeqLines.Length();
Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(nbv);
Standard_Integer n = 1;
while (n<=nbv)
aPrims->AddVertex(aSeqLines(n++));
myGroup->AddPrimitiveArray(aPrims, Standard_False);
}
if (aSeqTenth.Length())
{
LineAttrib->SetColor (myTenthColor);
myGroup->SetPrimitivesAspect (LineAttrib);
const Standard_Integer nbv = aSeqTenth.Length();
Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(nbv);
Standard_Integer n = 1;
while (n<=nbv)
aPrims->AddVertex(aSeqTenth(n++));
myGroup->AddPrimitiveArray(aPrims, Standard_False);
}
myGroup->SetMinMaxValues(-myXSize, -myYSize, 0.0, myXSize, myYSize, 0.0);
myCurXStep = aXStep, myCurYStep = aYStep;
}
void V3d_RectangularGrid::DefinePoints ()
{
const Standard_Real aXStep = XStep();
const Standard_Real aYStep = YStep();
const Standard_Boolean toUpdate = !myCurAreDefined
|| myCurDrawMode != Aspect_GDM_Points
|| aXStep != myCurXStep
|| aYStep != myCurYStep;
if (!toUpdate)
{
return;
}
myGroup->Clear ();
Handle(Graphic3d_AspectMarker3d) MarkerAttrib = new Graphic3d_AspectMarker3d ();
MarkerAttrib->SetColor (myColor);
MarkerAttrib->SetType (Aspect_TOM_POINT);
MarkerAttrib->SetScale (3.);
// horizontals
Standard_Real xl, yl;
TColgp_SequenceOfPnt aSeqPnts;
for (xl = 0.0; xl <= myXSize; xl += aXStep) {
aSeqPnts.Append(gp_Pnt( xl, 0.0, -myOffSet));
aSeqPnts.Append(gp_Pnt(-xl, 0.0, -myOffSet));
for (yl = aYStep; yl <= myYSize; yl += aYStep) {
aSeqPnts.Append(gp_Pnt( xl, yl, -myOffSet));
aSeqPnts.Append(gp_Pnt( xl, -yl, -myOffSet));
aSeqPnts.Append(gp_Pnt(-xl, yl, -myOffSet));
aSeqPnts.Append(gp_Pnt(-xl, -yl, -myOffSet));
}
}
if (aSeqPnts.Length())
{
Standard_Integer i;
Standard_Real X,Y,Z;
const Standard_Integer nbv = aSeqPnts.Length();
Handle(Graphic3d_ArrayOfPoints) Vertical = new Graphic3d_ArrayOfPoints (nbv);
for (i=1; i<=nbv; i++)
{
aSeqPnts(i).Coord(X,Y,Z);
Vertical->AddVertex (X,Y,Z);
}
myGroup->SetGroupPrimitivesAspect (MarkerAttrib);
myGroup->AddPrimitiveArray (Vertical, Standard_False);
}
myGroup->SetMinMaxValues(-myXSize, -myYSize, 0.0, myXSize, myYSize, 0.0);
myCurXStep = aXStep, myCurYStep = aYStep;
}
void V3d_RectangularGrid::GraphicValues (Standard_Real& theXSize, Standard_Real& theYSize, Standard_Real& theOffSet) const
{
theXSize = myXSize;
theYSize = myYSize;
theOffSet = myOffSet;
}
void V3d_RectangularGrid::SetGraphicValues (const Standard_Real theXSize, const Standard_Real theYSize, const Standard_Real theOffSet)
{
if (! myCurAreDefined) {
myXSize = theXSize;
myYSize = theYSize;
myOffSet = theOffSet;
}
if (myXSize != theXSize) {
myXSize = theXSize;
myCurAreDefined = Standard_False;
}
if (myYSize != theYSize) {
myYSize = theYSize;
myCurAreDefined = Standard_False;
}
if (myOffSet != theOffSet) {
myOffSet = theOffSet;
myCurAreDefined = Standard_False;
}
if( !myCurAreDefined ) UpdateDisplay();
}
View Git Blame Copy Permalink