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Don't simplify "unused" movetos from points. Don't write empty geometries.

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This commit is contained in:
Eric Fischer 2015-12-11 12:31:10 -08:00
parent 25e261aa35
commit cf279940da
4 changed files with 31 additions and 18 deletions
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5
CHANGELOG.md
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@ -1,3 +1,8 @@
## 1.4.2
* Bug fix for problem that would occasionally produce empty point geometries
* More bug fixes for polygon generation
## 1.4.1 ## 1.4.1
* Features that cross the antimeridian are split into two parts instead * Features that cross the antimeridian are split into two parts instead

2
geometry.cc
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@ -108,6 +108,7 @@ drawvec remove_noop(drawvec geom, int type, int shift) {
// second pass: remove unused movetos // second pass: remove unused movetos
if (type != VT_POINT) {
geom = out; geom = out;
out.resize(0); out.resize(0);
@ -130,6 +131,7 @@ drawvec remove_noop(drawvec geom, int type, int shift) {
out.push_back(geom[i]); out.push_back(geom[i]);
} }
}
// second pass: remove empty movetos // second pass: remove empty movetos

6
tile.cc
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@ -753,12 +753,18 @@ long long write_tile(char **geoms, char *metabase, char *stringpool, int z, unsi
} }
features[j] = out; features[j] = out;
out.clear();
for (x = 0; x < features[j].size(); x++) { for (x = 0; x < features[j].size(); x++) {
if (features[j][x].coalesced && features[j][x].type == VT_LINE) { if (features[j][x].coalesced && features[j][x].type == VT_LINE) {
features[j][x].geom = remove_noop(features[j][x].geom, features[j][x].type, 0); features[j][x].geom = remove_noop(features[j][x].geom, features[j][x].type, 0);
features[j][x].geom = simplify_lines(features[j][x].geom, 32, 0); features[j][x].geom = simplify_lines(features[j][x].geom, 32, 0);
} }
if (features[j][x].geom.size() > 0) {
out.push_back(features[j][x]);
} }
}
features[j] = out;
if (prevent['i' & 0xFF]) { if (prevent['i' & 0xFF]) {
std::sort(features[j].begin(), features[j].end(), preservecmp); std::sort(features[j].begin(), features[j].end(), preservecmp);

2
version.h
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@ -1 +1 @@
#define VERSION "tippecanoe v1.4.1\n" #define VERSION "tippecanoe v1.4.2\n"