topotoolbox
所属分类:matlab编程
开发工具:matlab
文件大小:55462KB
下载次数:5
上传日期:2020-07-22 16:55:30
上 传 者:
sdge
说明: matlab语言包,基于DEM计算各地貌因子,包括坡度、起伏度等等。
(MATLAB language package, based on DEM to calculate various geomorphic factors, including slope, undulation and so on.)
文件列表:
@FLOWobj (0, 2018-11-28)
@FLOWobj\coord2ind.m (95, 2018-08-27)
@FLOWobj\crop.m (1407, 2018-08-27)
@FLOWobj\dbentropy.m (5811, 2018-08-27)
@FLOWobj\dependencemap.m (2749, 2018-08-27)
@FLOWobj\drainagebasins.m (5065, 2018-08-27)
@FLOWobj\drainagebasinstats.m (5354, 2018-08-27)
@FLOWobj\find.m (851, 2018-08-27)
@FLOWobj\flowacc.m (4511, 2018-08-27)
@FLOWobj\flowconvergence.m (1382, 2018-08-27)
@FLOWobj\flowdistance.m (4576, 2018-08-27)
@FLOWobj\FLOWobj.m (25558, 2018-08-27)
@FLOWobj\FLOWobj2cell.m (1882, 2018-08-27)
@FLOWobj\FLOWobj2gradient.m (1427, 2018-08-27)
@FLOWobj\FLOWobj2GRIDobj.m (2452, 2018-08-27)
@FLOWobj\FLOWobj2M.m (897, 2018-08-27)
@FLOWobj\flowpathapp.m (13150, 2018-08-27)
@FLOWobj\flowpathextract.m (5107, 2018-08-27)
@FLOWobj\imposemin.m (1867, 2018-08-27)
@FLOWobj\ind2coord.m (632, 2018-08-27)
@FLOWobj\influencemap.m (2019, 2018-08-27)
@FLOWobj\ismulti.m (747, 2018-08-27)
@FLOWobj\multi2single.m (672, 2018-08-27)
@FLOWobj\private (0, 2018-11-28)
@FLOWobj\private\border_nans.m (658, 2018-08-27)
@FLOWobj\private\copy2GRIDobj.m (279, 2018-08-27)
@FLOWobj\private\dem_flow.m (1682, 2018-08-27)
@FLOWobj\private\dependencemap_mex.c (1356, 2018-08-27)
@FLOWobj\private\dependencemap_mex.mexw64 (7680, 2018-08-27)
@FLOWobj\private\drainagebasins_mex.c (1411, 2018-08-27)
@FLOWobj\private\drainagebasins_mex.mexw64 (7680, 2018-08-27)
@FLOWobj\private\facet_flow.m (2840, 2018-08-27)
@FLOWobj\private\findsteepestneighbor.m (1605, 2018-08-27)
@FLOWobj\private\flow_matrix.m (10451, 2018-08-27)
@FLOWobj\private\flowacc_mex.c (1375, 2018-08-27)
@FLOWobj\private\flowacc_mex.mexw64 (8192, 2018-08-27)
@FLOWobj\private\flowdir.m (3775, 2018-08-27)
@FLOWobj\private\getdistance.m (793, 2018-08-27)
... ...
# TopoToolbox - a set of Matlab functions for topographic analysis
[TopoToolbox](http://topotoolbox.wordpress.com) provides a set of Matlab functions that support the analysis
of relief and flow pathways in digital elevation models. The major
aim of TopoToolbox is to offer helpful analytical GIS utilities in a
non-GIS environment in order to support the simultaneous application
of GIS-specific and other quantitative methods.
If you have any questions or remarks, please contact the authors:
[Wolfgang Schwanghart](http://www.geo.uni-potsdam.de/mitarbeiterdetails/show/421/Wolfgang_Schwanghart.html)
w.schwanghart[at]geo.uni-potsdam.de
[Dirk Scherler](https://sites.google.com/site/scherlerdirk/home)
scherler[at]gfz-potsdam.de
## Requirements
TopoToolbox is plat-form independent and requires
Matlab 2014b or higher and the Image Processing Toolbox. The Mapping
Toolbox is not mandatory, but good to have to facilitate easy data
exchange with GIS software.
## References
When you use TopoToolbox in your work, please reference following
publication:
Schwanghart, W., Scherler, D. (2014): TopoToolbox 2 – MATLAB-based
software for topographic analysis and modeling in Earth surface sciences.
Earth Surface Dynamics, 2, 1-7. DOI: [10.5194/esurf-2-1-2014](http://dx.doi.org/10.5194/esurf-2-1-2014)
If you are using version 1, then please refer to this publication:
Schwanghart, W., Kuhn, N.J. (2010): TopoToolbox: a set of MATLAB
functions for topographic analysis. Environmental Modelling & Software,
25, 770-781. DOI: [10.1016/j.envsoft.2009.12.002](http://dx.doi.org/10.1016/j.envsoft.2009.12.002)
## Getting started
Before working with TopoToolbox the directories and functions must be on the search
path of Matlab. Enter following code into the command line:
addpath(genpath('C:\path\to\wherever\you\installed\this\TopoToolbox-2'))
To remove .git-folders from the path, run
rmpath(genpath('C:\path\to\wherever\you\installed\this\TopoToolbox-2\.git'));
Type `doc` in the command line to open the main documentation page. You'll
find the TopoToolbox documentation in the section Supplemental Software.
The documentation contains several user's guides that will help you
getting started. In addition, TopoToolbox functions have extensive help
sections (e.g. `help gradient8` or `help STREAMobj/modify`. An additional
resource for code and examples is the [TopoToolbox blog](http://topotoolbox.wordpress.com).
## Version History
### pre 2.3
- Documentation in the documentation browser
- new function: ttcmap for creating nice colormaps for DEMs, inparticularly
if DEMs include topography and bathymetry
- new function: ttscm for access to scientific colormaps;
see [Fabio Crameri's website](http://www.fabiocrameri.ch/colourmaps.php)
- new function: STREAMobj/hillslopearea
- new function: STREAMobj/zerobaselevel
- new function: STREAMobj/knickpointfinder
- new function: STREAMobj/sinuosity
- new function: GRIDobj/GRIDobj2im
- new function: hydrosheds2FLOWobj (see in IOtools)
- new function: egm96heights including the grid ww15mgh.grd that contains global geoid
undulations based on the EGM96 geoid.
### 2.2
- TTLEM is part of TopoToolbox;
see our paper: Campforts, B., Schwanghart, W., Govers, G. (2017): Accurate simulation
of transient landscape evolution by eliminating numerical diffusion: the TTLEM 1.0 model.
Earth Surface Dynamics, 5, 47-66. [DOI: 10.5194/esurf-5-47-2017](http://dx.doi.org/10.5194/esurf-5-47-2017)
- new functions for smoothing and hydrological correction:
STREAMobj/crs, STREAMobj/crsapp, STREAMobj/smooth, STREAMobj/crslin,
STREAMobj/quantcarve, FLOWobj/quantcarve;
see our paper: Schwanghart, W., Scherler, D., 2017. Bumps in river profiles: uncertainty
assessment and smoothing using quantile regression techniques. Earth Surface Dynamics, 5,
821-839. [DOI: 10.5194/esurf-5-821-2017](http://dx.doi.org/10.5194/esurf-5-821-2017)
- modification: GRIDobj way to store referencing information was changed
- modification: FLOWobj now supports multiple flow directions and Dinf.
- modification: several new options for imageschs
- new function: FLOWobj/dbentropy
- new function: FLOWobj/updatetoposort
- new function: GRIDobj/aggregate
- new function: GRIDobj/createmask
- new function: GRIDobj/dist2line
- new function: GRIDobj/dist2curve
- new function: GRIDobj/line2GRIDobj
- new function: GRIDobj/GRIDobj2pm
- new function: GRIDobj/minmaxnorm
- new function: GRIDobj/reclabel
- new function: GRIDobj/zscore
- new function: GRIDobj/pad
- new function: STREAMobj/aggregate
- new function: STREAMobj/labelreach
- new function: STREAMobj/distance
- new function: STREAMobj/drainagedensity
- new function: STREAMobj/plotc
- new function: STREAMobj/plotdzshaded
- new function: STREAMobj/meanupstream
- new function: STREAMobj/plot3
- new function: STREAMobj/chitransform
- new function: STREAMobj/cumtrapz
- modification: STREAMobj/modify includes option rmconncomps
- new function: STREAMobj/mchi
- new function: STREAMobj/conncomps
- modification: STREAMobj/extractconncomps (new GUI and behavior)
- modification: STREAMobj/union (new syntax)
- modification: STREAMobj/intersect (new syntax)
- new function: STREAMobj/isnal
- new function: STREAMobj/info
- new function: STREAMobj/orientation
- new function: STREAMobj/plotstreamorder
- new function: STREAMobj/removeedgeeffects
- new function: STREAMobj/split
- new function: STREAMobj/streamproj
- new function: STREAMobj/networksegment
- new function: STREAMobj/maplateral
- new function: STREAMobj/plotsegmentgeometry
- new function: STREAMobj/randlocs
- new function: STREAMobj/zerobaselevel
- modification: STREAMobj/streamorder plotting option removed
- modification: STREAMobj/plotdz includes custom distance option
- modification: STREAMobj/distance includes option to derive distance from different
STREAMobj
- modification: STREAMobj/STREAMobj2cell
- modification: STREAMobj/STREAMobj2mapstruct
- new function: STREAMobj/transformcoords
- new function: FLOWobj/FLOWobj2cell
- update to several FLOWobj methods to avoid speed loss for MATLAB versions newer
than R2015b
- removed bug in GRIDobj/curvature
### 2.1
- new function: GRIDobj/excesstopography; see our paper Blothe, J.H., Korup, O.,
Schwanghart, W. (2015): Large landslides lie low: Excess topography in the
Himalaya-Karakorum ranges. Geology, 43, 523-526. [DOI: 10.1130/G36527.1](http://dx.doi.org/10.1130/G36527.1)
- new function: GRIDobj/GRIDobj2polygon
- new function: STREAMobj/getnal
- new function: STREAMobj/sidebranching
- new function: STREAMobj/mincosthydrocon
- new function: STREAMobj/intersectlocs
- new function: STREAMobj/densify
- new function: STREAMobj/plot3d
- new function: STREAMobj/widenstream
- new function: demo_modifystreamnet
- modification of the function slopearea
- better performance of FLOWobj when converting from flow direction matrix
by using dmperm to perform topological sort
- new function: GRIDobj/toposhielding
- new function: demarea (incorporation of Juernjakob Dugge's function:
http://www.mathworks.com/matlabcentral/fileexchange/42204-calculate-dem-surface-area )
- new function: GRIDobj/getoutline
- removed a bug when some functions such log, log10 were called with integer
GRIDobjs
- additional overloading of built-in functions for GRIDobjs. We added matrix
arithmetics, which, however, perform element-wise operations (e.g. mtimes can
be used with GRIDobj now, but performs times)
- the scope of the function GRIDobj/localtopography was enhanced (min, max,
percentiles, etc in a disk-shaped neighborhood)
- FLOWobj/streampoi and STREAMobj/streampoi now return 'bconfluences',
e.g. stream pixels that in downstream direction are located immediately
before confluences.
- new function: STREAMobj/imposemin - limits downstream minima imposition
to the stream network
- several bug fixes
- demo_modifystreamnet.m
- preprocessapp was removed
### V2.0.1
- removed bug in GRIDobj
- removed bug with case-sensitivity in some functions
- removed bug with internal drainage option in FLOWobj
### V2.0
- new functions STREAMobj/intersect, STREAMobj/union
- new interactive tools in STREAMobj/modify
- new interactive tool GRIDobj/measure
### V2.0beta
V2.0 introduces an object oriented approach towards grid representation, flow direction, stream
networks and swath objects. The performance of various, inparticular flow related, functions was
increased. Mex-files have been written to increase the speed of some functions and are delivered as
***bit Windows binaries. They have been compiled on Windows 7 with an Intel processor, so they should be
compiled before using them, if your system differs. However, compiling is not mandatory, since m
versions are available, too, which are a little slower. Please refer to the Contents.m file for a
complete list of functions.
### V1.06 --- 11. November 2011
- new function: acv
- new function: cropmat
- new function: dbentropy
- new function: deminpaint
- new function: exaggerate
- new function: label2poly
- new function: routegeodesic (as optimal method for routing through flats and
pits). Requires Matlab 2011b and will be made the default routing algorithm
in future releases.
- new function: upslopesidelength
- new function: upslopestats
- new function: getextent and setextent
- function enhancements: rasterread and rasterwrite.
- function enhancements: roughness
- new users guide on processing flat areas
- the baranja_hill.mat dataset was added. It was obtained from
here: http://geomorphometry.org/content/baranja-hill
### V1.05 --- 15. September 2010
- some of the functions now employ the function validateattributes to check
input arguments. Note that this might return a warning on older versions than
2009a.
- a bug in routeflats was removed
- new function: M2UV
- new function: twi
- new function: aspect
- new function: ismulti
- new function: postprocflats
- new function: demsobel
- new function: hypscurve
- new function: roughness
- removed bug in flowacc. flowacc returned an error when called with three
input arguments
- gradient8 allows you to output different angular units, major speed
increase when called with gradient as sole output argument.
- functional enhancements to flowdistance (see help flowdistance)
- functional enhancements to identifyflats
- rasterread and rasterwrite now feature dialog boxes for reading and
saving files if no filenames are supplied to the function
- flowdistanceds can now calculate the maximum downward flowpath distance
for each cell at one step.
### V1.04 --- 5. January 2010 - *first public release*
- a bug in flowacc_lm was removed. When a weight matrix W0
was supplied as additional input argument, W0 was set to
dem.
- new function: imageschs
- minor changes to hillshade were made. The algorithm is now
based on method proposed by Katzil and Doytsher, 2003.
- flowacc allows for another input argument (runoff ratio).
### V1.03 --- 5. November 2009
- sub-basin analysis has been added as new functionality
(see sbstruct, sbplot, sbprops)
- new function: adjustgauges
### V1.02 --- 30. October 2009
- major speed enhancement for fillsinks with maximum
fill depth
### V1.01 --- 16. September 2009
- hillshade plots the hillshade matrix when no output
arguments are defined.
- flowacc_lm was optimized, so that large, flat areas
are handled more memory efficiently.
- a bug in routeflats was removed.
- crossflats was updated to run most efficient on
Matlab R2009a.
- drainagebasins functionality was enhanced to allow
for the delineation of drainage basins of specified
order. The former support of multiple flow direction
has been removed.
- new function: drainagedensity
- new function: shufflelabel
- influencemap got a second output Mstreams
### V1.0 --- 15. March 2009
- release
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