void grid_renderer<T>::process(shield_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
shield_symbolizer_helper<face_manager<freetype_engine>,
label_collision_detector4> helper(
sym, feature, prj_trans,
width_, height_,
scale_factor_,
t_, font_manager_, *detector_,
query_extent_);
bool placement_found = false;
text_renderer<T> ren(pixmap_,
font_manager_,
sym.get_halo_rasterizer(),
sym.comp_op(),
scale_factor_);
text_placement_info_ptr placement;
while (helper.next())
{
placement_found = true;
placements_type const& placements = helper.placements();
for (unsigned int ii = 0; ii < placements.size(); ++ii)
{
// get_marker_position returns (minx,miny) corner position,
// while (currently only) agg_renderer::render_marker newly
// expects center position;
// until all renderers and shield_symbolizer_helper are
// modified accordingly, we must adjust the position here
pixel_position pos = helper.get_marker_position(placements[ii]);
pos.x += 0.5 * helper.get_marker_width();
pos.y += 0.5 * helper.get_marker_height();
render_marker(feature,
pixmap_.get_resolution(),
pos,
helper.get_marker(),
helper.get_image_transform(),
sym.get_opacity(),
sym.comp_op());
ren.prepare_glyphs(placements[ii]);
ren.render_id(feature.id(), placements[ii].center);
}
}
if (placement_found)
pixmap_.add_feature(feature);
}
void agg_renderer<T>::process(shield_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
shield_symbolizer_helper<face_manager<freetype_engine>,
label_collision_detector4> helper(
sym, feature, prj_trans,
width_, height_,
scale_factor_,
t_, font_manager_, *detector_, query_extent_);
text_renderer<T> ren(*current_buffer_, font_manager_, *(font_manager_.get_stroker()));
while (helper.next()) {
placements_type &placements = helper.placements();
for (unsigned int ii = 0; ii < placements.size(); ++ii)
{
// get_marker_position returns (minx,miny) corner position,
// while (currently only) agg_renderer::render_marker newly
// expects center position;
// until all renderers and shield_symbolizer_helper are
// modified accordingly, we must adjust the position here
pixel_position pos = helper.get_marker_position(placements[ii]);
pos.x += 0.5 * helper.get_marker_width();
pos.y += 0.5 * helper.get_marker_height();
render_marker(pos,
helper.get_marker(),
helper.get_image_transform(),
sym.get_opacity(),
sym.comp_op());
ren.prepare_glyphs(&(placements[ii]));
ren.render(placements[ii].center);
}
}
}
void agg_renderer<T>::process(shield_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
for (std::list<feature_ptr>::iterator f = featureList_->begin(); f != featureList_->end(); f++) {
feature_ptr featurePtr = *f;
shield_symbolizer_helper<face_manager<freetype_engine>,
label_collision_detector4> helper(
sym, *featurePtr, prj_trans,
width_, height_,
scale_factor_,
t_, font_manager_, *detector_,
query_extent_);
text_renderer<T> ren(*current_buffer_,
font_manager_,
*(font_manager_.get_stroker()),
sym.comp_op(),
scale_factor_);
while (helper.next())
{
placements_type const& placements = helper.placements();
for (unsigned int ii = 0; ii < placements.size(); ++ii)
{
// get_marker_position returns (minx,miny) corner position,
// while (currently only) agg_renderer::render_marker newly
// expects center position;
// until all renderers and shield_symbolizer_helper are
// modified accordingly, we must adjust the position here
pixel_position pos = helper.get_marker_position(placements[ii]);
// pos.x += 0.5 * helper.get_marker_width();
// pos.y += 0.5 * helper.get_marker_height();
// render_marker(pos,
// helper.get_marker(),
// helper.get_image_transform(),
// sym.get_opacity(),
// sym.comp_op());
marker const& marker_ = helper.get_marker();
image_data_32 const& src = **marker_.get_bitmap_data();
double width = src.width();
double height = src.height();
const double shifted = 0;
double markerX = pos.x + shifted, markerY = height_ - pos.y - shifted - height;
glMatrixLoadIdentityEXT(GL_PROJECTION);
glMatrixOrthoEXT(GL_PROJECTION, 0, width_, height_, 0, -1, 1);
glMatrixLoadIdentityEXT(GL_MODELVIEW);
GLubyte cmd[5];
GLfloat coord[8];
int m = 0, n = 0;
cmd[m++] = GL_MOVE_TO_NV;
coord[n++] = markerX;
coord[n++] = markerY;
cmd[m++] = GL_LINE_TO_NV;
coord[n++] = markerX + width;
coord[n++] = markerY;
cmd[m++] = GL_LINE_TO_NV;
coord[n++] = markerX + width;
coord[n++] = markerY + height;
cmd[m++] = GL_LINE_TO_NV;
coord[n++] = markerX;
coord[n++] = markerY + height;
cmd[m++] = GL_CLOSE_PATH_NV;
glPathCommandsNV(pathObject_, m, cmd, n, GL_FLOAT, coord);
// glStencilFunc(GL_NOTEQUAL, 0, 0x1F);
// glStencilOp(GL_KEEP, GL_KEEP, GL_ZERO);
//makeFaceTexture(TEXTURE_FACE);
static GLuint texName;
glGenTextures(1, &texName);
glBindTexture(GL_TEXTURE_2D, texName);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, (unsigned char *)src.getBytes());
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
GLfloat data[2][3] = { { 1,0,0 }, /* s = 1*x + 0*y + 0 */
{ 0,1,0 } }; /* t = 0*x + 1*y + 0 */
//glEnable(GL_STENCIL_TEST);
//glColor3f(1,1,1);
glEnable(GL_TEXTURE_2D);
glPathTexGenNV(GL_TEXTURE0, GL_PATH_OBJECT_BOUNDING_BOX_NV, 2, &data[0][0]);
glStencilFillPathNV(pathObject_, GL_COUNT_UP_NV, 0x1F);
glCoverFillPathNV(pathObject_, GL_BOUNDING_BOX_NV);
glDisable(GL_TEXTURE_2D);
pathObject_++;
//Text rendering
//ren.prepare_glyphs(placements[ii]);
//ren.render(placements[ii].center);
const int size = placements[ii].num_nodes();
int strokeEnable = 0;
char word[size];
unsigned red,green,blue,alpha;
double textWidth = 0;
double textHeight = 0;
color textColor,strokeColor;
double opacity = 0.0;
for (int i = 0; i < placements[ii].num_nodes(); i++)
{
char_info_ptr c;
double x, y, angle;
placements[ii].vertex(&c, &x, &y, &angle);
word[i] = (char)c->c;
textWidth += c->width;
textHeight = c->height();
double halo_radius = c->format->halo_radius;
if (halo_radius > 0.0 && halo_radius < 1024.0){
strokeEnable = 1;
// red = c->format->halo_fill.red();
// green = c->format->halo_fill.green();
// blue = c->format->halo_fill.blue();
// alpha = c->format->halo_fill.alpha();
strokeColor = c->format->halo_fill;
}
textColor = c->format->fill;
opacity = c->format->text_opacity;
}
double posX = placements[ii].center.x, posY = placements[ii].center.y;
int centerText = textWidth / 2;
double posTextY = height_ - markerY - (height)/2;
double posTextX = posX - centerText;
if(posTextY <= height_ / 2) posTextY -= 5;
if(posTextX >= width_ / 2) posTextX += 5;
if(!strokeEnable){
render_text(size, word, posTextX, posTextY,textColor, opacity);
}
if(strokeEnable){
render_text(size, word, posTextX, posTextY,textColor,strokeColor,opacity);
}
}
}
}
}