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Duplicate features within the buffer of the antimeridian on both sides

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Eric Fischer
2018-07-27 16:14:49 -07:00
parent faa952ec7d
commit 759bceb986
40 changed files with 1867 additions and 852 deletions
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tile.cpp
+3 -3
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@@ -1219,19 +1219,19 @@ bool clip_to_tile(serial_feature &sf, int z, long long buffer) {
}
if (z == 0) {
if (sf.bbox[0] < 0 || sf.bbox[2] > 1LL << 32) {
if (sf.bbox[0] <= (1LL << 32) * buffer / 256 || sf.bbox[2] >= (1LL << 32) - ((1LL << 32) * buffer / 256)) {
// If the geometry extends off the edge of the world, concatenate on another copy
// shifted by 360 degrees, and then make sure both copies get clipped down to size.
size_t n = sf.geometry.size();
if (sf.bbox[0] < 0) {
if (sf.bbox[0] <= (1LL << 32) * buffer / 256) {
for (size_t i = 0; i < n; i++) {
sf.geometry.push_back(draw(sf.geometry[i].op, sf.geometry[i].x + (1LL << 32), sf.geometry[i].y));
}
}
if (sf.bbox[2] > 1LL << 32) {
if (sf.bbox[2] >= (1LL << 32) - ((1LL << 32) * buffer / 256)) {
for (size_t i = 0; i < n; i++) {
sf.geometry.push_back(draw(sf.geometry[i].op, sf.geometry[i].x - (1LL << 32), sf.geometry[i].y));
}