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updated 2 months ago

Flow Accumulation (upslope area) by Wolfgang Schwanghart

Flow accumulation algorithm that routes through flats (algorithms, geomorphology, earth sciences)

ixneighbors(varargin)

wflowacc(X,Y,dem,varargin)

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updated 3 months ago

shadem by Chad Greene

Chad Greene (view profile)

Easily turn flat pcolor, pcolorm, surf, or surfm data into a hillshade-style shaded relief map. (hillshade, hill shade, shaded relief)

shadem documentation

shadem(varargin)

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updated 5 months ago

clickz by Chad Greene

Chad Greene (view profile)

Easily get z values of pcolor or image plots from mouse clicks. (pcolor, image, imagesc)

clickz documentation

clickz(varargin)

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updated almost 2 years ago

Calculate DEM Surface Area by Juernjakob Dugge

Calculate the corrected surface area of a digital elevation model. (dem, elevation, surface area)

demarea( Z, varargin )

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updated 2 years ago

Vectorized Solar Azimuth and Elevation Estimation by Darin Koblick

Darin Koblick (view profile)

Predict the topocentric solar position defined by geodetic lat, lon, Alt, and a universal time (aerospace, alt, altitude)

SolarAzEl(UTC,Lat,Lon,Alt)

test_SolarAzEl()

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updated 2 years ago

Positional Astronomy Library in MATLAB (partial SLALIB library) by Nima Razavi-Ghods

Accurate tool to map from equatorial (RA,DEC) to spherical (TH, PH) coordinates (includes rdplan). (astronomy, alt, altitude)

cldj(IY, IM, ID)

dat(UTC)

dcc2s(V)

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updated 2 years ago

geotiffwrite by Jimmy Shen

Jimmy Shen (view profile)

Write a 2D or 3D array to a single or multi-band GeoTIFF file (geotiff format write ..., earth, science)

geotiffwrite(filename, bbox, image, bit_depth, option)

make_option(action)

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updated 3 years ago

Astronomy Software for Computing Azimuth, Elevation, Julian Date, GMST, and LMST. by Daniel Okoh

Daniel Okoh (view profile)

The software converts RA and DEC to Azimuth and Elevation, plus lots of other things (astronomy, ra, dec)

AstroTool(varargin)

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updated 3 years ago

Spherical Earth Elevation Angle by Jonathan Sullivan

Determines elevation angle based on spherical Earth. (mapping, elevation, angle)

getElevationAngle(GR,h1,h2,rEffective)

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updated 4 years ago

Lunar Azimuth and Altitude Estimation Algorithm by Darin Koblick

Darin Koblick (view profile)

Predict the Lunar Azimuth and Altitude within +/- .2 deg of any lat and lon for a given UTC (aerospace, astronomy, moon)

LunarAzEl(UTC,Lat,Lon,Alt)

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updated almost 5 years ago

3D Surface/Mesh to VRML Utility: mesh2vrml 1.0 by Simulink Dude

Simulink Dude (view profile)

Convert MATLAB 3D surface to ElevationGrid in VRML (simulink, 3d, animation)

filename_final=mesh2vrml(X, Y, Z)

startmeup.m

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updated 5 years ago

Plots a surface coloring by layers (using contour curves) by Rafael Palacios

Rafael Palacios (view profile)

Creates a surface and applies color by layers. Different elevation levels are clearly identified. (surface coloring, elevation, contour)

[s m]=surflayers(X,Y,Z,layers)

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updated 5 years ago

Convert Right Ascension and Declination to Azimuth and Elevation by Darin Koblick

Darin Koblick (view profile)

Algorithm will convert topocentric RA/DEC Angles to Azimuth and Elevation (az, azimuth, dec)

RaDec2AzEl(Ra,Dec,lat,lon,time)

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updated 5 years ago

Convert Azimuth and Elevation to Right Ascension and Declination by Darin Koblick

Darin Koblick (view profile)

Algorithm will convert Az/El angles to RA /DEC using a topocentric coordinate frame (raan, ra, dec)

AzEl2RaDec(Az,El,lat,lon,time)

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updated 5 years ago

Right ascension/declination to azimuth/elevation by Frank Breitling

Mapping from equatorial to horizontal coordinates - i.e. from RA/Dec to az/el (Alt/Az) (aerospace, astronomy, azimuth)

RADec2AzEl(RA,Dec,UTC,Lat,Lon,Alt)

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updated 6 years ago

sun_position.m by Vincent Roy

Vincent Roy (view profile)

Sun position given observer time/location. (sun position, zenith, elevation)

sun_position.m

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updated 6 years ago

Digitize_map by Arnaud Gizolme

Rapid map digitization and provision of [x y z] coordinates in a .dat file (data import, data export, digitize)

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updated 7 years ago

gradient8 by Wolfgang Schwanghart

8-connected neighborhood gradient and aspect of a digital elevation model (gradient, aspect, exposition)

gradient8(DEM,res)

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updated 7 years ago

rae2xyz by Yair Altman

Yair Altman (view profile)

Transform radar coordinates (Range, Azimuth, Elevation) to Cartesian coordinates (East, North, Up) (aerospace, aeronautics, aerodef)

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updated 7 years ago

xyz2rae by Yair Altman

Yair Altman (view profile)

Transform Cartesian coordinates (East, North, Up) to radar coordinates (Range, Azimuth, Elevation) (aerospace, aeronautics, aerodef)

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updated 12 years ago

GUI based Satellite Tracking System by Prabhakar Subrahmanyam

Tracks, prints & plots the pass of a satellite (aerospace, aeronautics, aerodef)

stsnew.m

elaz.m

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