ZWISCHENPUNKTE - Revision history

Ak3gseis at 07:48, 11 October 2022

2022-10-11T07:48:43Z

← Older revision		Revision as of 07:48, 11 October 2022
Line 31:		Line 31:
	\|preprocessor=[[POLWIND]], [[POLYUMFORM]]		\|preprocessor=[[POLWIND]], [[POLYUMFORM]]
	\|postprocessor=ARCGIS, [[ArcGIS-Applications]], [[MEDIANGLAETTUNG]]		\|postprocessor=ARCGIS, [[ArcGIS-Applications]], [[MEDIANGLAETTUNG]]
	\|language=~~Fortran77<br />~~Fortran90		\|language=Fortran90
	\|add_software=-		\|add_software=-
	\|contact_original=~~[mailto:info.hamburg@baw.de~~ J. Fräßdorf]		\|contact_original=J. Fräßdorf
	\|contact_maintenance=[mailto:~~info~~.~~hamburg~~@baw.de ~~J. Fräßdorf~~]		\|contact_maintenance=[mailto:pre.proghome@baw.de working group PRE]
	\|documentation=$PROGHOME/examples/zwischenpunkte/*<br />		\|documentation=$PROGHOME/examples/zwischenpunkte/*<br />
	see also Erzeugen von synthetischen Tiefenpunkten aus Isoliniendaten, published in Supercomputing News No. 4/1998 (available in German only).		see also Erzeugen von synthetischen Tiefenpunkten aus Isoliniendaten, published in Supercomputing News No. 4/1998 (available in German only).
	}}		}}

imported>BAWiki 3 at 07:16, 16 June 2010

2010-06-16T07:16:11Z

← Older revision		Revision as of 07:16, 16 June 2010
Line 30:		Line 30:
	An extra function allows to evaluate depth information on an polygon which defines the system boundary. The depth information is found out by evaluating the intersection points of the polygon and the contour lines. It is also possible to generate depth information between the intersection points as described above. It it also possible to generate depth information by linear interpolation of the depth information at the intersection points. The depth information at the angles of the polygon is calculated by the mean value of the neighbouring intersection points.		An extra function allows to evaluate depth information on an polygon which defines the system boundary. The depth information is found out by evaluating the intersection points of the polygon and the contour lines. It is also possible to generate depth information between the intersection points as described above. It it also possible to generate depth information by linear interpolation of the depth information at the intersection points. The depth information at the angles of the polygon is calculated by the mean value of the neighbouring intersection points.
	\|preprocessor=[[POLWIND]], [[POLYUMFORM]]		\|preprocessor=[[POLWIND]], [[POLYUMFORM]]
	\|postprocessor=ARCGIS, [[ArcGIS-~~Anwendungen~~]], [[MEDIANGLAETTUNG]]		\|postprocessor=ARCGIS, [[ArcGIS-Applications]], [[MEDIANGLAETTUNG]]
	\|language=Fortran77<br />Fortran90		\|language=Fortran77<br />Fortran90
	\|add_software=-		\|add_software=-

imported>BAWiki 3 at 07:14, 16 June 2010

2010-06-16T07:14:24Z

← Older revision		Revision as of 07:14, 16 June 2010
Line 30:		Line 30:
	An extra function allows to evaluate depth information on an polygon which defines the system boundary. The depth information is found out by evaluating the intersection points of the polygon and the contour lines. It is also possible to generate depth information between the intersection points as described above. It it also possible to generate depth information by linear interpolation of the depth information at the intersection points. The depth information at the angles of the polygon is calculated by the mean value of the neighbouring intersection points.		An extra function allows to evaluate depth information on an polygon which defines the system boundary. The depth information is found out by evaluating the intersection points of the polygon and the contour lines. It is also possible to generate depth information between the intersection points as described above. It it also possible to generate depth information by linear interpolation of the depth information at the intersection points. The depth information at the angles of the polygon is calculated by the mean value of the neighbouring intersection points.
	\|preprocessor=[[POLWIND]], [[POLYUMFORM]]		\|preprocessor=[[POLWIND]], [[POLYUMFORM]]
	\|postprocessor=ARCGIS, Im- ~~und Exportmodule~~, [[MEDIANGLAETTUNG]]		\|postprocessor=ARCGIS, [[ArcGIS-Anwendungen]], [[MEDIANGLAETTUNG]]
	\|language=Fortran77<br />Fortran90		\|language=Fortran77<br />Fortran90
	\|add_software=-		\|add_software=-

imported>BAWiki 3 at 07:11, 16 June 2010

2010-06-16T07:11:31Z

← Older revision		Revision as of 07:11, 16 June 2010
Line 30:		Line 30:
	An extra function allows to evaluate depth information on an polygon which defines the system boundary. The depth information is found out by evaluating the intersection points of the polygon and the contour lines. It is also possible to generate depth information between the intersection points as described above. It it also possible to generate depth information by linear interpolation of the depth information at the intersection points. The depth information at the angles of the polygon is calculated by the mean value of the neighbouring intersection points.		An extra function allows to evaluate depth information on an polygon which defines the system boundary. The depth information is found out by evaluating the intersection points of the polygon and the contour lines. It is also possible to generate depth information between the intersection points as described above. It it also possible to generate depth information by linear interpolation of the depth information at the intersection points. The depth information at the angles of the polygon is calculated by the mean value of the neighbouring intersection points.
	\|preprocessor=[[POLWIND]], [[POLYUMFORM]]		\|preprocessor=[[POLWIND]], [[POLYUMFORM]]
	\|postprocessor=~~[[ARCVIEW]]~~, Im- und Exportmodule, [[MEDIANGLAETTUNG]]		\|postprocessor=ARCGIS, Im- und Exportmodule, [[MEDIANGLAETTUNG]]
	\|language=Fortran77<br />Fortran90		\|language=Fortran77<br />Fortran90
	\|add_software=-		\|add_software=-

imported>BAWiki 2: Created page with '{{ProgramDescription |name_de=ZWISCHENPUNKTE |name=ZWISCHENPUNKTE |version=January 1999 |version_descr=April 2008 |catchwords=spline-interpolation
contour line
topo…'

2010-05-31T13:00:12Z

Created page with '{{ProgramDescription |name_de=ZWISCHENPUNKTE |name=ZWISCHENPUNKTE |version=January 1999 |version_descr=April 2008 |catchwords=spline-interpolation contour line topo…'

New page

{{ProgramDescription
|name_de=ZWISCHENPUNKTE
|name=ZWISCHENPUNKTE
|version=January 1999
|version_descr=April 2008
|catchwords=spline-interpolation 
contour line 
topography 
morphology 
volume method
|shortdescription=The program ZWISCHENPUNKTE generates topographical information by spline-interpolation. It can be used for a better interpretation of topographical data which is based on depth contours. Also its possible to generate depth information on a polygon to be used as a system boundary.
|inputfiles=
# input-file (filetype [[ZWISCHENPUNKTE.DAT|zwischenpunkte.dat]])
# file with depth contours (filetype [[INSEL.DAT|insel.dat]])
# (optional) file with profiles (filetype [[DIGI.GKK|digi.gkk]])
# (optional) file with a talweg-polygon (filetype [[DIGI.GKK|digi.gkk]])
# (optional) file with a system boundary polygon without depth information (filetype [[DIGI.GKK|digi.gkk]])
|outputfiles=
# file with generated depth information (filetype [[GEOM.DAT|geom.dat]])
# (optional) file with points of intersection of depth contours and profiles (filetype [[GEOM.DAT|geom.dat]])
# (optional) file with depth points which define depth contours (filetype [[GEOM.DAT|geom.dat]])
# (optional) file with generated profiles (filetype [[DIGI.GKK|digi.gkk]])
# (optional) file with a system boundary polygon containing depth information (filetype [[INSEL.DAT|insel.dat]])
|methodology=
The points of intersection between depth contours and profiles are found out. On each profile the points of intersection are used as fixed points for a spline interpolation. Depth information is generated by evaluating the spline-functions between the depth contours. The evaluation is carried out at points which are located at constant distances on the profile and/or at a constant number of points which are centered equidistant between two depth contours.
Profiles can be defined in an input file, or they will be generated by the program. The generation of profiles can be carried out either by generating profiles right-angled to a talweg-polygon (which is defined in an input file) or by generating profiles right-angled to the bank. The bank is defined as the contour line at MThw level (mean tidal high-water).
Profiles which cross more than one channel are divided into new profiles (which don’t cross more than one channel).
To avoid generation of not plausible depth data a smoothing routine is carried out after evaluating the spline-functions. The smoothing is carried out, if the depth value of a generated point is not within the depth intervall of the closest depth contours that surround the neighbouring depth contours to the point. The smoothing is carried out by replacing the spline-points by points of a second degree parable. The extrem value of the parable is defined by a smoothing parameter in the input-file.
Also its possible to suppress output of spline-points which are out of a depth intervall surroundig the depth values of the neighbouring contour lines. Also its possible to suppress generation of spline-points at profiles where the distance between at least two contour lines is greater than an maximum distance. The maximum depth intervall and the maximum distance must be defined in the input file.
An extra function allows to evaluate depth information on an polygon which defines the system boundary. The depth information is found out by evaluating the intersection points of the polygon and the contour lines. It is also possible to generate depth information between the intersection points as described above. It it also possible to generate depth information by linear interpolation of the depth information at the intersection points. The depth information at the angles of the polygon is calculated by the mean value of the neighbouring intersection points.
|preprocessor=[[POLWIND]], [[POLYUMFORM]]
|postprocessor=[[ARCVIEW]], Im- und Exportmodule, [[MEDIANGLAETTUNG]]
|language=Fortran77 Fortran90
|add_software=-
|contact_original=[mailto:info.hamburg@baw.de J. Fräßdorf]
|contact_maintenance=[mailto:info.hamburg@baw.de J. Fräßdorf]
|documentation=$PROGHOME/examples/zwischenpunkte/* 
see also Erzeugen von synthetischen Tiefenpunkten aus Isoliniendaten, published in Supercomputing News No. 4/1998 (available in German only).
}}

ZWISCHENPUNKTE - Revision history

Ak3gseis at 07:48, 11 October 2022

imported>BAWiki 3 at 07:16, 16 June 2010

imported>BAWiki 3 at 07:14, 16 June 2010

imported>BAWiki 3 at 07:11, 16 June 2010

imported>BAWiki 2: Created page with '{{ProgramDescription |name_de=ZWISCHENPUNKTE |name=ZWISCHENPUNKTE |version=January 1999 |version_descr=April 2008 |catchwords=spline-interpolation contour line topo…'

imported>BAWiki 2: Created page with '{{ProgramDescription |name_de=ZWISCHENPUNKTE |name=ZWISCHENPUNKTE |version=January 1999 |version_descr=April 2008 |catchwords=spline-interpolation
contour line
topo…'