Comments (3)
Further debug reveals the following in ConcatenatedTransform
:
Items in the list are not cloned:
public ConcatenatedTransform Clone()
{
var clonedList = new List<ICoordinateTransformation>(_coordinateTransformationList.Count);
foreach (ICoordinateTransformation ct in _coordinateTransformationList)
clonedList.Add(ct);
return new ConcatenatedTransform(clonedList);
}
Which causes the invert
function to invert their math transform on the newly created instance:
public override void Invert()
{
_coordinateTransformationList.Reverse();
foreach (ICoordinateTransformation ic in _coordinateTransformationList)
ic.MathTransform.Invert();
}
I couldn't find a clone
method ICoordinateTransformation
, any thoughts?
from projnet4geoapi.
Using IMathTransform.Inverse()
is known to be flaky.
Modify your factory IMathTransform Create()
function to return either forward or inverse math transform objects and use those instead of Inverse()
.
from projnet4geoapi.
This is my plan in order to workaround this issue, but fixing it inside this library is important in order for other people not to experience this issue.
from projnet4geoapi.
Related Issues (20)
- Add Orthographic Projection HOT 2
- Handle WKT Extension Tag HOT 1
- License change to MIT HOT 3
- Coordinate Conversion - WGS84 to SPCS (NAD83) HOT 3
- Latitude & Longitude order confusing HOT 1
- Convert map view objects to svg
- WGS84 coordinates transformation to Cartesian coordinates HOT 1
- Is it the ICoordinateTransformation thread safe ?
- How convert proj4js source to this lib source?
- Typo in code sample on Wiki HOT 1
- Migrate to Proj.6
- WGS84 -> Lambert Azimuthal Equal Area -> WGS84 fails when x = 0 HOT 3
- Add support for EPSG 5515 S-JTSK/05 / Modified Krovak HOT 2
- confusing documentation for axis orientation
- ProjNET only supports [] objects
- Release version ?
- Sqlite/sqlserver server side vs client side evaluation
- creating a transformation factory fails on ios HOT 1
- Add support of modern coordinate systems that includes height HOT 4
- Seeking help HOT 8
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from projnet4geoapi.