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Fix x/y pixel offsets of placefile icons

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This commit is contained in:
Dan Paulat 2023-08-05 00:44:37 -05:00
parent eaf5089526
commit e66c202edf
2 changed files with 18 additions and 15 deletions
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2
scwx-qt/gl/geo_texture2d.vert
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@ -37,6 +37,6 @@ void main()
vec2 p = latLngToScreenCoordinate(aLatLong) - uMapScreenCoord;
// Transform the position to screen coordinates
gl_Position = uMapMatrix * vec4(p, 0.0f, 1.0f) -
gl_Position = uMapMatrix * vec4(p, 0.0f, 1.0f) +
uMVPMatrix * vec4(aXYOffset, 0.0f, 0.0f);
}

31
scwx-qt/source/scwx/qt/gl/draw/placefile_icons.cpp
View file

@ -311,16 +311,19 @@ void PlacefileIcons::Impl::Update()
const float x = static_cast<float>(di->x_);
const float y = static_cast<float>(di->y_);
// Half icon size
const float hw = static_cast<float>(icon.iconFile_->iconWidth_) * 0.5f;
const float hh =
static_cast<float>(icon.iconFile_->iconHeight_) * 0.5f;
// Icon size
const float iw = static_cast<float>(icon.iconFile_->iconWidth_);
const float ih = static_cast<float>(icon.iconFile_->iconHeight_);
// Hot X/Y (zero-based icon center)
const float hx = static_cast<float>(icon.iconFile_->hotX_);
const float hy = static_cast<float>(icon.iconFile_->hotY_);
// Final X/Y offsets in pixels
const float lx = std::roundf(x - hw);
const float rx = std::roundf(x + hw);
const float by = std::roundf(y - hh);
const float ty = std::roundf(y + hh);
const float lx = std::roundf(x - hx);
const float rx = std::roundf(lx + iw);
const float ty = std::roundf(y + hy);
const float by = std::roundf(ty - ih);
// Angle in degrees
// TODO: Properly convert
@ -347,12 +350,12 @@ void PlacefileIcons::Impl::Update()
buffer.insert(buffer.end(),
{
// Icon
lat, lon, lx, by, rs, tt, mc0, mc1, mc2, mc3, a, // BL
lat, lon, lx, ty, rs, bt, mc0, mc1, mc2, mc3, a, // TL
lat, lon, rx, by, ls, tt, mc0, mc1, mc2, mc3, a, // BR
lat, lon, rx, by, ls, tt, mc0, mc1, mc2, mc3, a, // BR
lat, lon, rx, ty, ls, bt, mc0, mc1, mc2, mc3, a, // TR
lat, lon, lx, ty, rs, bt, mc0, mc1, mc2, mc3, a // TL
lat, lon, lx, by, ls, bt, mc0, mc1, mc2, mc3, a, // BL
lat, lon, lx, ty, ls, tt, mc0, mc1, mc2, mc3, a, // TL
lat, lon, rx, by, rs, bt, mc0, mc1, mc2, mc3, a, // BR
lat, lon, rx, by, rs, bt, mc0, mc1, mc2, mc3, a, // BR
lat, lon, rx, ty, rs, tt, mc0, mc1, mc2, mc3, a, // TR
lat, lon, lx, ty, ls, tt, mc0, mc1, mc2, mc3, a // TL
});
numVertices_ += 6;