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SoMarkerSet.3coin2

NAME

SoMarkerSet -

The SoMarkerSet class displays a set of 2D bitmap markers in 3D.

This node uses the coordinates currently on the state (or in the vertexProperty field) in order. The numPoints field specifies the number of points in the set.

SYNOPSIS

#include <Inventor/nodes/SoMarkerSet.h>

Inherits SoPointSet.

Public Types

enum MarkerType { NONE = -1, CROSS_5_5, PLUS_5_5, MINUS_5_5, SLASH_5_5, BACKSLASH_5_5, BAR_5_5, STAR_5_5, Y_5_5, LIGHTNING_5_5, WELL_5_5, CIRCLE_LINE_5_5, SQUARE_LINE_5_5, DIAMOND_LINE_5_5, TRIANGLE_LINE_5_5, RHOMBUS_LINE_5_5, HOURGLASS_LINE_5_5, SATELLITE_LINE_5_5, PINE_TREE_LINE_5_5, CAUTION_LINE_5_5, SHIP_LINE_5_5, CIRCLE_FILLED_5_5, SQUARE_FILLED_5_5, DIAMOND_FILLED_5_5, TRIANGLE_FILLED_5_5, RHOMBUS_FILLED_5_5, HOURGLASS_FILLED_5_5, SATELLITE_FILLED_5_5, PINE_TREE_FILLED_5_5, CAUTION_FILLED_5_5, SHIP_FILLED_5_5, CROSS_7_7, PLUS_7_7, MINUS_7_7, SLASH_7_7, BACKSLASH_7_7, BAR_7_7, STAR_7_7, Y_7_7, LIGHTNING_7_7, WELL_7_7, CIRCLE_LINE_7_7, SQUARE_LINE_7_7, DIAMOND_LINE_7_7, TRIANGLE_LINE_7_7, RHOMBUS_LINE_7_7, HOURGLASS_LINE_7_7, SATELLITE_LINE_7_7, PINE_TREE_LINE_7_7, CAUTION_LINE_7_7, SHIP_LINE_7_7, CIRCLE_FILLED_7_7, SQUARE_FILLED_7_7, DIAMOND_FILLED_7_7, TRIANGLE_FILLED_7_7, RHOMBUS_FILLED_7_7, HOURGLASS_FILLED_7_7, SATELLITE_FILLED_7_7, PINE_TREE_FILLED_7_7, CAUTION_FILLED_7_7, SHIP_FILLED_7_7, CROSS_9_9, PLUS_9_9, MINUS_9_9, SLASH_9_9, BACKSLASH_9_9, BAR_9_9, STAR_9_9, Y_9_9, LIGHTNING_9_9, WELL_9_9, CIRCLE_LINE_9_9, SQUARE_LINE_9_9, DIAMOND_LINE_9_9, TRIANGLE_LINE_9_9, RHOMBUS_LINE_9_9, HOURGLASS_LINE_9_9, SATELLITE_LINE_9_9, PINE_TREE_LINE_9_9, CAUTION_LINE_9_9, SHIP_LINE_9_9, CIRCLE_FILLED_9_9, SQUARE_FILLED_9_9, DIAMOND_FILLED_9_9, TRIANGLE_FILLED_9_9, RHOMBUS_FILLED_9_9, HOURGLASS_FILLED_9_9, SATELLITE_FILLED_9_9, PINE_TREE_FILLED_9_9, CAUTION_FILLED_9_9, SHIP_FILLED_9_9, NUM_MARKERS }

Public Member Functions

SoMarkerSet (void)

virtual void GLRender (SoGLRenderAction *action)

virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)

Static Public Member Functions

static void initClass (void)

static int getNumDefinedMarkers (void)

static void addMarker (int idx, const SbVec2s &size, const unsigned char *bytes, SbBool isLSBFirst=1, SbBool isUpToDown=1)

static SbBool getMarker (int idx, SbVec2s &size, const unsigned char *&bytes, SbBool &isLSBFirst)

static SbBool removeMarker (int idx)

static SbBool isMarkerBitSet (int idx, int bitNumber)

Public Attributes

SoMFInt32 markerIndex

Protected Member Functions

virtual ~SoMarkerSet ()

Detailed Description

The SoMarkerSet class displays a set of 2D bitmap markers in 3D.

This node uses the coordinates currently on the state (or in the vertexProperty field) in order. The numPoints field specifies the number of points in the set.

In addition to supplying the user with a set of standard markers to choose from, it is also possible to specify one's own bitmaps for markers.

This node class is an extension versus the original SGI Inventor v2.1 API. In addition to being a Coin extension, it is also present in TGS' Inventor implementation. (Note that TGS's implementation doesn't support the NONE markerIndex value.)

FILE FORMAT/DEFAULTS:

     MarkerSet {
         vertexProperty NULL
         startIndex 0
         numPoints -1
         markerIndex 0
     }
 
 

Since:

TGS Inventor 2.5
Coin 1.0

Member Enumeration Documentation

enum SoMarkerSet::MarkerTypeDefines the different standard markers.

Constructor & Destructor Documentation

SoMarkerSet::SoMarkerSet (void)Constructor.

References markerIndex.

SoMarkerSet::~SoMarkerSet () [protected, virtual]Destructor.

Member Function Documentation

void SoMarkerSet::initClass (void) [static]Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoPointSet.

References SbList< Type >::append().

void SoMarkerSet::GLRender (SoGLRenderAction * action) [virtual]Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.

Reimplemented from SoPointSet.

References SoFieldContainer::get(), SbList< Type >::getLength(), SoMField::getNum(), SoAction::getState(), SoVertexShape::getVertexData(), SbViewportRegion::getViewportSizePixels(), SoNode::GLRender(), markerIndex, SbMatrix::multVecMatrix(), SoPointSet::numPoints, SoState::pop(), SoDebugError::postWarning(), SoState::push(), SoFieldContainer::set(), SoVertexShape::shouldGLRender(), SoNonIndexedShape::startIndex, and SoVertexShape::vertexProperty.

void SoMarkerSet::getPrimitiveCount (SoGetPrimitiveCountAction * action) [virtual]Action method for the SoGetPrimitiveCountAction.

Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action.

Nodes influencing how geometry nodes calculates their primitive count also overrides this method to change the relevant state variables.

Reimplemented from SoPointSet.

References SoGetPrimitiveCountAction::addNumImage(), SoNode::getPrimitiveCount(), SoAction::getState(), SoVertexShape::getVertexData(), SoPointSet::numPoints, SoState::pop(), SoState::push(), SoShape::shouldPrimitiveCount(), SoNonIndexedShape::startIndex, and SoVertexShape::vertexProperty.

int SoMarkerSet::getNumDefinedMarkers (void) [static]Returns the number of defined markers.

References SbList< Type >::getLength().

void SoMarkerSet::addMarker (int idx, const SbVec2s & size, const unsigned char * bytes, SbBool isLSBFirst = 1, SbBool isUpToDown = 1) [static]Replace the bitmap for the marker at idx with the representation given by size dimensions with the bitmap data at bytes. isLSBFirst and isUpToDown indicates how the bitmap data is ordered. Does nothing if markerIndex is NONE.

Here's a complete usage example which demonstrates how to set up a user-specified marker from a char-map. Note that the 'multi-colored' pixmap data is converted to a monochrome bitmap before being passed to addMarker() because addMarker() supports only bitmaps.

   const int WIDTH = 18;
   const int HEIGHT = 19;
   const int BYTEWIDTH = (WIDTH + 7) / 2;
 
   const char coin_marker[WIDTH * HEIGHT + 1] = {
     '.+                '
     '+@.+              '
     ' .@#.+            '
     ' +$@##.+          '
     '  .%@&##.+        '
     '  +$@&&*##.+      '
     '   .%@&&*=##.+    '
     '   +$@&&&&=-##.+  '
     '    .%@&&&&&-;#&+ '
     '    +$@&&&&&&=#.  '
     '     .%@&&&&*#.   '
     '     +$@&&&&#.    '
     '      .%@&@%@#.   '
     '      +$%@%.$@#.  '
     '       .%%. .$@#. '
     '       +$.   .$>#.'
     '        +     .$. '
     '               .  '
     '                  ' };
 
   int byteidx = 0;
   unsigned char bitmapbytes[BYTEWIDTH * HEIGHT];
   for (int h = 0; h < HEIGHT; h++) {
     unsigned char bits = 0;
     for (int w = 0; w < WIDTH; w++) {
       if (coin_marker[(h * WIDTH) + w] != ' ') { bits |= (0x80 >> (w % 8)); }
       if ((((w + 1) % 8) == 0) || (w == WIDTH - 1)) {
         bitmapbytes[byteidx++] = bits;
         bits = 0;
       }
     }
   }
 
   int MYAPP_ARROW_IDX = SoMarkerSet::getNumDefinedMarkers(); // add at end
   SoMarkerSet::addMarker(MYAPP_ARROW_IDX, SbVec2s(WIDTH, HEIGHT),
                          bitmapbytes, FALSE, TRUE);
 

This will provide you with an index given by MYAPP_ARROW_IDX which can be used in SoMarkerSet::markerIndex to display the new marker.

References SbList< Type >::append(), and SbList< Type >::getLength().

SbBool SoMarkerSet::getMarker (int idx, SbVec2s & size, const unsigned char *& bytes, SbBool & isLSBFirst) [static]Returns data for marker at idx in the size, bytes and isLSBFirst parameters.

If no marker is defined for given idx, or SoMarkerSet::markerIndex is NONE (not removable), FALSE is returned. If everything is OK, TRUE is returned.

References SbList< Type >::getLength().

SbBool SoMarkerSet::removeMarker (int idx) [static]Removes marker at idx.

If no marker is defined for given idx, or SoMarkerSet::markerIndex is NONE (not removable), FALSE is returned. If everything is OK, TRUE is returned.

References SbList< Type >::getLength(), and SbList< Type >::remove().

SbBool SoMarkerSet::isMarkerBitSet (int idx, int bitNumber) [static]Not supported in Coin. Should probably not have been part of the public Open Inventor API.

Member Data Documentation

SoMFInt32 SoMarkerSet::markerIndexContains the set of index markers to display, defaults to 0 (CROSS_5_5). The special value NONE renders nothing for that marker.

Referenced by GLRender(), and SoMarkerSet().

Author

Generated automatically by Doxygen for Coin from the source code.