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Aspose.GIS for for Python via .NET 25.5 Release Notes
This page contains release notes information for Aspose.GIS for Python via .NET 25.5.
Full List of Issues Covering all Changes in this Release
| Key | Summary | Category |
|---|---|---|
| GISPYTHON-23 | Allow specifying SRS for MapInfo TAB layer. | Feature |
| GISPYTHON-25 | Corrects X and Y coodinates disorder and adds Z in GML format. | Bug |
Public API and Backward Incompatible Changes
Following members have been added:
- None
Following members have been removed:
- None
Usage examples:
GISPYTHON-23. Allow specifying SRS for MapInfo TAB layer.
open_path = "mercator.tab"
create_path = "mercator_create.tab"
# Test 1: Open existing layer and check Web Mercator parameters
with Drivers.map_info_tab.open_layer(open_path, None) as lyr:
layer = cast(VectorLayer, lyr)
srs = layer.spatial_reference_system.as_projected
assert 0 == srs.projection.get_parameter_value("latitude_of_origin", ParameterType.LINEAR)
assert 0 == srs.projection.get_parameter_value("central_meridian", ParameterType.LINEAR)
assert 0 == srs.projection.get_parameter_value("false_easting", ParameterType.LINEAR)
assert 0 == srs.projection.get_parameter_value("false_northing", ParameterType.LINEAR)
options = MapInfoTabOptions()
options.validate_geometries_on_write = False
# Test 2: Create new layer with Web Mercator projection
with Drivers.map_info_tab.create_layer(create_path, options, SpatialReferenceSystem.web_mercator) as layer:
srs = layer.spatial_reference_system.as_projected
assert 0 == srs.projection.get_parameter_value("latitude_of_origin", ParameterType.LINEAR)
assert 0 == srs.projection.get_parameter_value("central_meridian", ParameterType.LINEAR)
assert 0 == srs.projection.get_parameter_value("false_easting", ParameterType.LINEAR)
assert 0 == srs.projection.get_parameter_value("false_northing", ParameterType.LINEAR)
# Test 3: Create layer with ETRS89 Lambert Conformal Conic
with Drivers.map_info_tab.create_layer(create_path, options, SpatialReferenceSystem.etrs_89_lambert_conformal_conic) as layer:
srs = layer.spatial_reference_system.as_projected
assert 35 == srs.projection.get_parameter_value("standard_parallel_1", ParameterType.LINEAR)
assert abs(65 - srs.projection.get_parameter_value("standard_parallel_2", ParameterType.LINEAR)) < 1e-8
assert 52 == srs.projection.get_parameter_value("latitude_of_origin", ParameterType.LINEAR)
assert 10 == srs.projection.get_parameter_value("central_meridian", ParameterType.LINEAR)
assert 4000000 == srs.projection.get_parameter_value("false_easting", ParameterType.LINEAR)
assert 2800000 == srs.projection.get_parameter_value("false_northing", ParameterType.LINEAR)
# Test 4: Create layer with OSGB36 British National Grid
with Drivers.map_info_tab.create_layer(create_path, options, SpatialReferenceSystem.osgb_36_british_national_grid) as layer:
srs = layer.spatial_reference_system.as_projected
assert 49 == srs.projection.get_parameter_value("latitude_of_origin", ParameterType.LINEAR)
assert -2 == srs.projection.get_parameter_value("central_meridian", ParameterType.LINEAR) # Note: Typo in parameter name?
assert 400000 == srs.projection.get_parameter_value("false_easting", ParameterType.LINEAR)
assert -100000 == srs.projection.get_parameter_value("false_northing", ParameterType.LINEAR)**GISPYTHON-25. Corrects X and Y coodinates disorder and adds Z in GML format. **
expected_gml = """<?xml version="1.0" encoding="utf-8"?>
<app:FeatureCollection xmlns:gml="http://www.opengis.net/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:app="http://example.org/app" xmlns:ogr="http://ogr.maptools.org/" xsi:schemaLocation="http://example.org/app http://schemas.opengis.net/gml/2.1.2/feature.xsd">
<gml:featureMember>
<app:Feature>
<gml:geometryProperty>
<gml:Point gml:srsName="http://www.opengis.net/gml/srs/epsg.xml#UNKNOWN">
<gml:coord>
<gml:X>1</gml:X>
<gml:Y>2</gml:Y>
<gml:Z>10.1</gml:Z>
</gml:coord>
</gml:Point>
</gml:geometryProperty>
</app:Feature>
</gml:featureMember>
<gml:featureMember>
<app:Feature>
<gml:geometryProperty>
<gml:Point gml:srsName="http://www.opengis.net/gml/srs/epsg.xml#UNKNOWN">
<gml:coord>
<gml:X>11</gml:X>
<gml:Y>22</gml:Y>
<gml:Z>15.2</gml:Z>
</gml:coord>
</gml:Point>
</gml:geometryProperty>
</app:Feature>
</gml:featureMember>
<gml:featureMember>
<app:Feature>
<gml:geometryProperty>
<gml:Point gml:srsName="http://www.opengis.net/gml/srs/epsg.xml#UNKNOWN">
<gml:coord>
<gml:X>111</gml:X>
<gml:Y>222</gml:Y>
<gml:Z>20.3</gml:Z>
</gml:coord>
</gml:Point>
</gml:geometryProperty>
</app:Feature>
</gml:featureMember>
<gml:featureMember>
<app:Feature>
<gml:geometryProperty>
<gml:LineString gml:srsName="http://www.opengis.net/gml/srs/epsg.xml#UNKNOWN">
<gml:coordinates xmlns:gml="http://www.opengis.net/gml" decimal="." cs="," ts=" ">1,2,10.1 11,22,15.2 111,222,20.3</gml:coordinates>
</gml:LineString>
</gml:geometryProperty>
</app:Feature>
</gml:featureMember>
<gml:featureMember>
<app:Feature>
<gml:geometryProperty>
<gml:Polygon gml:srsName="http://www.opengis.net/gml/srs/epsg.xml#UNKNOWN">
<outerBoundaryIs>
<gml:LinearRing gml:srsName="http://www.opengis.net/gml/srs/epsg.xml#UNKNOWN">
<gml:coordinates xmlns:gml="http://www.opengis.net/gml" decimal="." cs="," ts=" ">1,2,10.1 11,22,15.2 111,222,20.3 1,2,10.1</gml:coordinates>
</gml:LinearRing>
</outerBoundaryIs>
</gml:Polygon>
</gml:geometryProperty>
</app:Feature>
</gml:featureMember>
</app:FeatureCollection>"""
file_name = "gml_xyz_bug.gml"
# Create points
point1 = Point(1.0, 2.0, 10.1)
point2 = Point(11.0, 22.0, 15.2)
point3 = Point(111.0, 222.0, 20.3)
# Create and populate the vector layer
with VectorLayer.create(file_name, Drivers.gml) as layer:
# Add point features
feature = layer.construct_feature()
feature.geometry = point1
layer.add(feature)
feature = layer.construct_feature()
feature.geometry = point2
layer.add(feature)
feature = layer.construct_feature()
feature.geometry = point3
layer.add(feature)
# Add line feature
feature = layer.construct_feature()
line_string = LineString()
line_string.add_point(point1)
line_string.add_point(point2)
line_string.add_point(point3)
feature.geometry = line_string
layer.add(feature)
# Add polygon feature
feature = layer.construct_feature()
linear_ring = LinearRing()
linear_ring.add_point(point1)
linear_ring.add_point(point2)
linear_ring.add_point(point3)
linear_ring.add_point(point1)
polygon = Polygon(linear_ring)
feature.geometry = polygon
layer.add(feature)
# Compare XML documents
expected_doc = ET.fromstring(expected_gml.encode("utf-8"))
actual_doc = ET.parse(file_name)
actual = actual_doc.getroot()
if (not elements_equal(expected_doc, actual)):
assert False, "XML documents are not equal"
def elements_equal(e1, e2):
# Compare tag names
if e1.tag != e2.tag:
return False
# Compare text content (ignoring whitespace)
if (e1.text or "").strip() != (e2.text or "").strip():
return False
# Compare tail content (if relevant)
if (e1.tail or "").strip() != (e2.tail or "").strip():
return False
# Compare attributes
if e1.attrib != e2.attrib:
return False
# Compare number of children
if len(e1) != len(e2):
return False
# Recursively compare all children
return all(self.elements_equal(c1, c2) for c1, c2 in zip(e1, e2))