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Extra coordinate precision; feature ordering; compression improvements

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* Add an option to retain extra coordinate precision at maxzoom

* Make sure not to shift away the extra detail from coordinates

* Add an option to convert double-precision attributes to single

* Sort attribute values in tiles to make them compress a little better

* Slightly improve polygon simplification

By choosing a point that would be retained after simplification
to be the start/end point that always gets retained

* I regret making all of these tests involve polygons

* Add an option to specify the size of tiny polygons

* Fix accidental requiring of argument for --single-precision

* Guard against duplicate points when generating "sizes" for them

* Restore the intended behavior that tiny polygons don't get simplified

* Make the extra detail settable rather than always maximizing it

* Revert "Improve maxzoom guessing for tightly-clustered point data sources (#4)"

This reverts commit fec5e8354c.

* Add an option to prevent choosing a base zoom higher than the maxzoom

* Keep the drop rate high enough when the basezoom gets constrained

* Revert "Revert "Improve maxzoom guessing for tightly-clustered point data sources (#4)""

This reverts commit db6bc27d9e.

* Add --order-by and --order-descending options

* Accept multiple --order-by and --order-descending-by sort keys
This commit is contained in:
Erica Fischer
2022-09-06 13:08:11 -07:00
committed by Erica Fischer
parent 4ea8a37611
commit a447dfc089
80 changed files with 13616 additions and 9945 deletions
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serial.cpp
+9
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@@ -596,6 +596,15 @@ int serialize_feature(struct serialization_state *sst, serial_feature &sf) {
for (ssize_t i = (ssize_t) sf.full_keys.size() - 1; i >= 0; i--) {
coerce_value(sf.full_keys[i], sf.full_values[i].type, sf.full_values[i].s, sst->attribute_types);
if (prevent[P_SINGLE_PRECISION]) {
if (sf.full_values[i].type == mvt_double) {
// don't coerce integers to floats, since that is counterproductive
if (sf.full_values[i].s.find('.') != std::string::npos) {
sf.full_values[i].s = milo::dtoa_milo((float) atof(sf.full_values[i].s.c_str()));
}
}
}
if (sf.full_keys[i] == attribute_for_id) {
if (sf.full_values[i].type != mvt_double && !additional[A_CONVERT_NUMERIC_IDS]) {
static bool warned = false;