### extends 'class_empty.py'
### block ClassImports
# NOTICE: Do not edit anything here, it is generated code
from . import gxapi_cy
from geosoft.gxapi import GXContext, float_ref, int_ref, str_ref
### endblock ClassImports
### block Header
# NOTICE: The code generator will not replace the code in this block
### endblock Header
### block ClassImplementation
# NOTICE: Do not edit anything here, it is generated code
[docs]class GXTC(gxapi_cy.WrapTC):
"""
GXTC class.
The `GXTC <geosoft.gxapi.GXTC>` object is used in gravitational modelling to create
a terrain correction grid from a topography grid. This is
accomplished with a call first to `grregter <geosoft.gxapi.GXTC.grregter>`, which determines
the terrain correction from an input topography grid, then
to `grterain <geosoft.gxapi.GXTC.grterain>`, which calculates the actual corrections at
the input positions.
"""
[docs] def __init__(self, handle=0):
super(GXTC, self).__init__(GXContext._get_tls_geo(), handle)
[docs] @classmethod
def null(cls):
"""
A null (undefined) instance of `GXTC <geosoft.gxapi.GXTC>`
:returns: A null `GXTC <geosoft.gxapi.GXTC>`
:rtype: GXTC
"""
return GXTC()
[docs] def is_null(self):
"""
Check if this is a null (undefined) instance
:returns: True if this is a null (undefined) instance, False otherwise.
:rtype: bool
"""
return self._internal_handle() == 0
# Miscellaneous
[docs] @classmethod
def create(cls, img, elev_unit, dinner, douter, dens_t, dens_w, elev_w, edge, edge_elev, opt):
"""
Creates a Terrain Correction object
:param img: Topo (DEM) grid
:param elev_unit: Elevation unit in 1 metre (i.e. 0.3048 for feet)
:param dinner: Inner distance (in topo grid projection units, default in metres)
:param douter: Outer distance (in topo grid projection units, default in metres)
:param dens_t: Terrain density in g/cc
:param dens_w: Water density in g/cc
:param elev_w: Water reference elevation (in elevation unit)
:param edge: 1 to calculate an edge correction (compensation), 0 otherwise
:param edge_elev: Average elevation beyond max distance (in elevation unit)
:param opt: :ref:`TC_OPT`
:type img: GXIMG
:type elev_unit: float
:type dinner: float
:type douter: float
:type dens_t: float
:type dens_w: float
:type elev_w: float
:type edge: int
:type edge_elev: float
:type opt: int
:returns: `GXTC <geosoft.gxapi.GXTC>` Object
:rtype: GXTC
.. versionadded:: 5.0
**License:** `Geosoft Extended End-User License <https://geosoftgxdev.atlassian.net/wiki/spaces/GD/pages/2359406/License#License-ext-end-user-lic>`_
"""
ret_val = gxapi_cy.WrapTC._create(GXContext._get_tls_geo(), img, elev_unit, dinner, douter, dens_t, dens_w, elev_w, edge, edge_elev, opt)
return GXTC(ret_val)
[docs] @classmethod
def create_ex(cls, img, elev_unit, dinner, douter, dens_t, dens_w, elev_w, edge, edge_elev, opt, survey_type):
"""
Creates a Terrain Correction object with surveytype
:param img: Topo (DEM) grid
:param elev_unit: Elevation unit in 1 metre (i.e. 0.3048 for feet)
:param dinner: Inner distance (in topo grid projection units, default in metres)
:param douter: Outer distance (in topo grid projection units, default in metres)
:param dens_t: Terrain density in g/cc
:param dens_w: Water density in g/cc
:param elev_w: Water reference elevation (in elevation unit)
:param edge: 1 to calculate an edge correction (compensation), 0 otherwise
:param edge_elev: Average elevation beyond max distance (in elevation unit)
:param opt: :ref:`TC_OPT`
:param survey_type: :ref:`TC_SURVEYTYPE`
:type img: GXIMG
:type elev_unit: float
:type dinner: float
:type douter: float
:type dens_t: float
:type dens_w: float
:type elev_w: float
:type edge: int
:type edge_elev: float
:type opt: int
:type survey_type: int
:returns: `GXTC <geosoft.gxapi.GXTC>` Object
:rtype: GXTC
.. versionadded:: 6.2
**License:** `Geosoft Extended End-User License <https://geosoftgxdev.atlassian.net/wiki/spaces/GD/pages/2359406/License#License-ext-end-user-lic>`_
"""
ret_val = gxapi_cy.WrapTC._create_ex(GXContext._get_tls_geo(), img, elev_unit, dinner, douter, dens_t, dens_w, elev_w, edge, edge_elev, opt, survey_type)
return GXTC(ret_val)
[docs] @classmethod
def create_ex2(cls, img, elev_unit, dinner, douter, dens_t, dens_w, elev_w, edge, edge_elev, opt, survey_type, img2):
"""
Creates a Terrain Correction object with surveytype and topo surface elevation grid
:param img: Topo (Rock Surface DEM) grid
:param elev_unit: Elevation unit in 1 metre (i.e. 0.3048 for feet)
:param dinner: Inner distance (in topo grid projection units, default in metres)
:param douter: Outer distance (in topo grid projection units, default in metres)
:param dens_t: Terrain density in g/cc
:param dens_w: Water density in g/cc
:param elev_w: Water reference elevation (in elevation unit)
:param edge: 1 to calculate an edge correction (compensation), 0 otherwise
:param edge_elev: Average elevation beyond max distance (in elevation unit)
:param opt: :ref:`TC_OPT`
:param survey_type: :ref:`TC_SURVEYTYPE`
:param img2: Topo (Elev Surface DEM) grid
:type img: GXIMG
:type elev_unit: float
:type dinner: float
:type douter: float
:type dens_t: float
:type dens_w: float
:type elev_w: float
:type edge: int
:type edge_elev: float
:type opt: int
:type survey_type: int
:type img2: GXIMG
:returns: `GXTC <geosoft.gxapi.GXTC>` Object
:rtype: GXTC
.. versionadded:: 9.9
**License:** `Geosoft Extended End-User License <https://geosoftgxdev.atlassian.net/wiki/spaces/GD/pages/2359406/License#License-ext-end-user-lic>`_
"""
ret_val = gxapi_cy.WrapTC._create_ex2(GXContext._get_tls_geo(), img, elev_unit, dinner, douter, dens_t, dens_w, elev_w, edge, edge_elev, opt, survey_type, img2)
return GXTC(ret_val)
[docs] def grregter(self, im_gi, im_go):
"""
Create a terrain correction grid for a topo grid.
:param im_gi: Input `GXIMG <geosoft.gxapi.GXIMG>` (local DEM topo grid used for station elevation)
:param im_go: Image of output grid
:type im_gi: GXIMG
:type im_go: GXIMG
.. versionadded:: 5.0
**License:** `Geosoft Extended End-User License <https://geosoftgxdev.atlassian.net/wiki/spaces/GD/pages/2359406/License#License-ext-end-user-lic>`_
"""
self._grregter(im_gi, im_go)
[docs] def grterain(self, gv_vx, gv_vy, gv_velev, gv_vslop, gv_vtcor, im_gcor, dens_t):
"""
Calculate terrain corrections.
:param gv_vx: Input X channel data (in topo grid projection units, default in metres)
:param gv_vy: Input Y channel data (in topo grid projection units, default in metres)
:param gv_velev: Input Elevation channel data (in elevation unit)
:param gv_vslop: Input slope channel data
:param gv_vtcor: Output Terrain Corrected channel data
:param im_gcor: Image of input correction grid
:param dens_t: Terrain density (default 2.67)
:type gv_vx: GXVV
:type gv_vy: GXVV
:type gv_velev: GXVV
:type gv_vslop: GXVV
:type gv_vtcor: GXVV
:type im_gcor: GXIMG
:type dens_t: float
.. versionadded:: 5.0
**License:** `Geosoft Extended End-User License <https://geosoftgxdev.atlassian.net/wiki/spaces/GD/pages/2359406/License#License-ext-end-user-lic>`_
"""
self._grterain(gv_vx, gv_vy, gv_velev, gv_vslop, gv_vtcor, im_gcor, dens_t)
[docs] def grterain2(self, gv_vx, gv_vy, gv_velev, gv_vslop, gv_vwater, gv_vtcor, im_gcor, dens_t):
"""
Calculate terrain corrections (work for marine gravity too).
:param gv_vx: Input X channel data (in topo grid projection units, default in metres)
:param gv_vy: Input Y channel data (in topo grid projection units, default in metres)
:param gv_velev: Input Elevation channel data (in elevation unit)
:param gv_vslop: Input slope channel data
:param gv_vwater: Input Water depth channel data (in metres)
:param gv_vtcor: Output Terrain Corrected channel data
:param im_gcor: Image of input correction grid
:param dens_t: Terrain density (default 2.67)
:type gv_vx: GXVV
:type gv_vy: GXVV
:type gv_velev: GXVV
:type gv_vslop: GXVV
:type gv_vwater: GXVV
:type gv_vtcor: GXVV
:type im_gcor: GXIMG
:type dens_t: float
.. versionadded:: 6.0
**License:** `Geosoft Extended End-User License <https://geosoftgxdev.atlassian.net/wiki/spaces/GD/pages/2359406/License#License-ext-end-user-lic>`_
"""
self._grterain2(gv_vx, gv_vy, gv_velev, gv_vslop, gv_vwater, gv_vtcor, im_gcor, dens_t)
[docs] def g_gterain(self, gv_vx, p3, p4, p5, p6, p7, p8):
"""
Calculate GG terrain corrections
:param gv_vx: Input X channel data (in topo grid projection units, default in metres)
:param p3: Input Y channel data (in topo grid projection units, default in metres)
:param p4: Input Elevation channel data (in elevation unit)
:param p5: Output Terrain Corrected channel data
:param p6: Terrain density (default 2.67)
:param p7: Terrain reference level (default 0.0)
:param p8: :ref:`GG_ELEMENT`
:type gv_vx: GXVV
:type p3: GXVV
:type p4: GXVV
:type p5: GXVV
:type p6: float
:type p7: float
:type p8: int
.. versionadded:: 6.0
**License:** `Geosoft Extended End-User License <https://geosoftgxdev.atlassian.net/wiki/spaces/GD/pages/2359406/License#License-ext-end-user-lic>`_
"""
self._g_gterain(gv_vx, p3, p4, p5, p6, p7, p8)
### endblock ClassImplementation
### block ClassExtend
# NOTICE: The code generator will not replace the code in this block
### endblock ClassExtend
### block Footer
# NOTICE: The code generator will not replace the code in this block
### endblock Footer