Model Data Projection Transformation

Instructions for use

Support the projection transformation of model dataest according to the target coordinate system. The model dataest generated after the transformation is saved in the target datasource.

Parameter Description

Parameter Name Parameter Description Parameter Type
Model Dataest Select source model dataest. Dataset
Model Convert Vertex
(Optional)		 Set model whether to perform a vertex-by-vertex projection transformation. When checked, the relative relationship between model objects in model dataest remains unchanged before and after conversion. Boolean
Target Projection Set the target coordinate system for the data.
In the iDesktop X Geo-Processing Automation (GPA) interface, this parameter can be set through the Target Coordinate System dialog box.
In the Geo-Processing Automation (GPA) WebUI interface of iServer, this parameter needs to input the EPSG code corresponding to the coordinate system. For example, this parameter value is 4326. Represents the WGS 1984 geographic coordinate system.		 PrjCoordSys
Method:
(optional)		 Sets the method for projection transformation of data. Including:
1. Geocentric Three-parameter Transformation Method Geocentric Translation (3-para): applicable to geocentric-based three-parameter Coordinate Transformation.
2. Molodensky Conversion Method Molodensky (3-para): Molodensky three-parameter conversion method.
3. Simplified Molodensky Transformation Method Abridged Molodensky (3-para): Three-parameter transformation method.
4. Position Vector Method Position Vector (7-para): one of the seven parameter conversion methods.
5. Coordinate Frame (7-para), a seven-parameter conversion method based on the earth's core.
6. Bursa-Wolf (7-para): a commonly used seven-parameter conversion method.
7. MolodenskyBadekas Projection Transformation Method MolodenskyBadekas (10-para): a ten-parameter spatial Coordinate Transformation model.
8. Three-dimensional seven-parameter conversion method China _ 3D _ 7P (7-para): used for conversion between different coordinate systems and the National Geodetic Coordinate System 2000 (CGC2000). It is applicable to Coordinate Transformation of control points between geodetic Coordinate Systems under different earth ellipsoid datum of 3 degrees and above of national and provincial ellipsoid. The conversion method involves three translation parameters, three rotation parameters and one scale change parameter, and simultaneously needs to consider two earth ellipsoid semi-major axes and the flattening difference corresponding to the two geodetic coordinate systems.
9. Two-dimensional seven-parameter conversion method China _ 2D _ 4P (7-para): used for conversion between different coordinate systems and the National Geodetic Coordinate System 2000 (CGC2000). It is applicable to national and provincial Coordinate Transformation of control points between geodetic Coordinate Systems under different earth ellipsoid datum of 3 degrees and above. The model involves three translation parameters, three rotation parameters and one scale variation parameter. For the transformation from Beijing Coordinate System 1954 and Xi'an Coordinate System 1980 to China Geodetic Coordinate System 2000, it is suggested to adopt the two-dimensional seven-parameter transformation because of the low accuracy of the geodetic height under the two reference-centered systems.
10. Two-dimensional four-parameter transformation model China _ 2D _ 4D (4-para): used for the transformation between different coordinate systems and the National Geodetic Coordinate System 2000 (CGC2000). It is applicable to Coordinate Transformation of local control points within 2 degrees at provincial level and below. The model involves three translation parameters and one scale variation parameter.
11, Prj4Projection Transformation algorithm PROJ4 Transmethod: Based on PROJ4 third-party Projection Transformation tool, Support more Projection Transformation operations and meet the data Projection Transformation requirements of more overseas users. The Projection Transformation algorithm only supports the transformation between projections with corresponding EPSG Code.		 CoordSysTransMethod
Scale Difference:
(optional)		 Sets the projection transformation parameter, The units are one in a million., Defines the amount of scaling from the original coordinate system to the Target Coordinate System. Double
Rotation Angle X:
(optional)		 Sets the rotation angle (Projection Transformation parameter) of the data along the X axis in seconds.
This parameter, together with Rotation angle Y and Z, determines the rotation angle of the data.		 Double
Rotation Angle Y:
(optional)		 Sets the rotation angle (Projection Transformation parameter) of the data along the Y axis in seconds.
This parameter, together with Rotation angle X and Z, determines the rotation angle of the data.		 Double
Rotation Angle Z:
(optional)		 Sets the rotation angle (Projection Transformation parameter) of the data along the Z axis in seconds.
This parameter, together with Rotation angle X and Y, determines the rotation angle of the data.		 Double
Offset X:
(Optional)		 Sets the offset of the data along the X axis (Projection Transformation parameter).
This parameter, along with Offset Y/Z, determines the coordinate offset of the data.		 Double
Offset Y:
(Optional)		 Sets the offset of the data along the Y axis (Projection Transformation parameter).
This parameter, along with Offset X/Z, determines the coordinate offset of the data.		 Double
Offset Z:
(Optional)		 Sets the offset of the data along the Z axis (Projection Transformation parameter).
This parameter, along with Offset X/Y, determines the coordinate offset of the data.		 Double
Rotation Origin X:
(Optional)		 Sets the X coordinate of the rotation point (Projection Transformation parameter).
This parameter, along with the rotation origin Y/Z, determines the data rotation point.		 Double
Rotation Origin Y:
(Optional)		 Sets the Y coordinate of the rotation point (Projection Transformation parameter).
This parameter, along with the rotation origin X/Z, determines the data rotation point.		 Double
Rotation Origin Z:
(Optional)		 Sets the Z coordinate of the rotation point (Projection Transformation parameter).
This parameter, along with the rotation origin X/Y, determines the data rotation point.		 Double
Target Datasource Select datasource to store result model dataset Datasource
Result Dataset Name
(Optional)		 Sets the name of the result model dataset. The default name is resultData. String

Output Result

Parameter Name Parameter Description Parameter Type
Convert Model Data Projection Result Model Dataset DatasetVector