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From Colin McDonald, "Attached is an update to the dxf plugin which adds rudimentary support for

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text entities.
"
This commit is contained in:
Robert Osfield
2008-10-07 13:06:53 +00:00
parent ff8c6aa32b
commit af30f0769a
4 changed files with 236 additions and 6 deletions
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144
src/osgPlugins/dxf/dxfEntity.cpp
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@@ -29,6 +29,7 @@ RegisterEntityProxy<dxfVertex> g_dxfVertex;
RegisterEntityProxy<dxfPolyline> g_dxfPolyline;
RegisterEntityProxy<dxfLWPolyline> g_dxfLWPolyline;
RegisterEntityProxy<dxfInsert> g_dxfInsert;
RegisterEntityProxy<dxfText> g_dxfText;
void
dxfBasicEntity::assign(dxfFile* , codeValue& cv)
@@ -732,7 +733,7 @@ dxfInsert::drawScene(scene* sc)
// (with the files I have, the results are equal to Voloview,
// and better than Deep Exploration and Lightwave).
// sanity check (useful when no block remains after all SOLIDS, TEXT, ... have been filtered out)
// sanity check (useful when no block remains after all unsupported entities have been filtered out)
if (!_block)
return;
@@ -771,6 +772,147 @@ dxfInsert::drawScene(scene* sc)
}
void
dxfText::assign(dxfFile* dxf, codeValue& cv)
{
switch (cv._groupCode) {
case 1:
_string = cv._string;
break;
case 10:
_point1.x() = cv._double;
break;
case 20:
_point1.y() = cv._double;
break;
case 30:
_point1.z() = cv._double;
break;
case 11:
_point2.x() = cv._double;
break;
case 21:
_point2.y() = cv._double;
break;
case 31:
_point2.z() = cv._double;
break;
case 40:
_height = cv._double;
break;
case 41:
_xscale = cv._double;
break;
case 50:
_rotation = cv._double;
break;
case 71:
_flags = cv._int;
break;
case 72:
_hjustify = cv._int;
break;
case 73:
_vjustify = cv._int;
break;
case 210:
_ocs.x() = cv._double;
break;
case 220:
_ocs.y() = cv._double;
break;
case 230:
_ocs.z() = cv._double;
break;
default:
dxfBasicEntity::assign(dxf, cv);
break;
}
}
void
dxfText::drawScene(scene* sc)
{
osgText::Text::AlignmentType align;
Matrixd m;
getOCSMatrix(_ocs, m);
sc->ocs(m);
ref_ptr<osgText::Text> _text = new osgText::Text;
_text->setText(_string);
_text->setCharacterSize( _height, 1.0/_xscale );
_text->setFont("arial.ttf");
Quat qr( DegreesToRadians(_rotation), Z_AXIS );
if ( _flags & 2 ) qr = Quat( PI, Y_AXIS ) * qr;
if ( _flags & 4 ) qr = Quat( PI, X_AXIS ) * qr;
_text->setAxisAlignment(osgText::Text::USER_DEFINED_ROTATION);
_text->setRotation(qr);
if ( _hjustify != 0 || _vjustify !=0 ) _point1 = _point2;
switch (_vjustify) {
case 3:
switch (_hjustify) {
case 2:
align = osgText::Text::RIGHT_TOP;
break;
case 1:
align = osgText::Text::CENTER_TOP;
break;
default:
align = osgText::Text::LEFT_TOP;
}
break;
case 2:
switch (_hjustify) {
case 2:
align = osgText::Text::RIGHT_CENTER;
break;
case 1:
align = osgText::Text::CENTER_CENTER;
break;
default:
align = osgText::Text::LEFT_CENTER;
}
break;
case 1:
switch (_hjustify) {
case 2:
align = osgText::Text::RIGHT_BOTTOM;
break;
case 1:
align = osgText::Text::CENTER_BOTTOM;
break;
default:
align = osgText::Text::LEFT_BOTTOM;
}
break;
default:
switch (_hjustify) {
case 2:
align = osgText::Text::RIGHT_BOTTOM_BASE_LINE;
break;
case 1:
align = osgText::Text::CENTER_BOTTOM_BASE_LINE;
break;
default:
align = osgText::Text::LEFT_BOTTOM_BASE_LINE;
}
break;
}
_text->setAlignment(align);
sc->addText(getLayer(), _color, _point1, _text.get());
sc->ocs_clear();
}
// static
void