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9    <title>Interpolation/ (SAXO Documentation)</title>
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27  <h1>SAXO Documentation</h1>
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33  <table cellspacing="0">
34    <tr>
35     
36      <td><a href="../overview.html?format=raw" title="Overview of library">Overview</a></td>
37     
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39     
40      <td id="selected">Directory</td>
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47     
48      <td><a href="../idldoc-index.html?format=raw" title="Index of files, routines, and parameters">Index</a></td>
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75&lt;&lt; prev file | next file &gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;<a href="./directory-overview.html?format=raw" target="_TOP">view single page</a> | <a href="../index.html?format=raw" target="_TOP">view frames</a>&nbsp;&nbsp;&nbsp;&nbsp;summary: fields | routine&nbsp;&nbsp;&nbsp;&nbsp;details: routine
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79
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81
82      <h1>Directory overview for Interpolation/</h1>
83
84     
85
86     
87      <h2>File summary</h2>
88
89      <dl>
90     
91        <dt><a href="angle.html?format=raw">angle.pro</a></dt>
92        <dd> north stereographic polar projection   Compute angles between grid lines and direction of the North (fom angle.</dd>
93     
94        <dt><a href="clickincell.html?format=raw">clickincell.pro</a></dt>
95        <dd> click on a map and find in which cell the click was </dd>
96     
97        <dt><a href="compute_fromreg_bilinear_weigaddr.html?format=raw">compute_fromreg_bilinear_weigaddr.pro</a></dt>
98        <dd> compute the weight and address neede to interpolate data from a           "regular grid" to any grid using the bilinear method    </dd>
99     
100        <dt><a href="compute_fromreg_imoms3_weigaddr.html?format=raw">compute_fromreg_imoms3_weigaddr.pro</a></dt>
101        <dd> compute the weight and address neede to interpolate data from a           "regular grid" to any grid using the imoms3 method    </dd>
102     
103        <dt><a href="cutpar.html?format=raw">cutpar.pro</a></dt>
104        <dd> cut p parallelogram(s) into p*n^2 parallelograms </dd>
105     
106        <dt><a href="cutsegment.html?format=raw">cutsegment.pro</a></dt>
107        <dd> cut p segments into p*n equal parts </dd>
108     
109        <dt><a href="extrapolate.html?format=raw">extrapolate.pro</a></dt>
110        <dd> extrapolate data (zinput) where maskinput eq 0 by filling step by  step the coastline points with the mean value of the 8 neighbourgs.</dd>
111     
112        <dt><a href="fromreg.html?format=raw">fromreg.pro</a></dt>
113        <dd> interpolate data from a "regular/rectangular grid" to any grid.</dd>
114     
115        <dt><a href="get_gridparams.html?format=raw">get_gridparams.pro</a></dt>
116        <dd>     1) extract from a NetCDF file the longitude, latidude, and their dimensions       and make sure it is 1D or 2D arrays         or 2) given longitude and latitude arrays get their dimensions and make sure        they are 1D or 2D arrays  </dd>
117     
118        <dt><a href="imoms3.html?format=raw">imoms3.pro</a></dt>
119        <dd></dd>
120     
121        <dt><a href="inquad.html?format=raw">inquad.pro</a></dt>
122        <dd> to find if an (x,y) point is in a quadrilateral (x1,x2,x3,x4) </dd>
123     
124        <dt><a href="inrecgrid.html?format=raw">inrecgrid.pro</a></dt>
125        <dd> given - a list of points, (x,y) position                   - the x and y limits of a rectangular grid           find in which cell is located each given point.</dd>
126     
127        <dt><a href="ll_narcs_distances.html?format=raw">ll_narcs_distances.pro</a></dt>
128        <dd>  This function returns the longitude and latitude [lon, lat] of a point a given arc distance (-pi <= Arc_Dist <= pi), and azimuth (Az), from a specified location Lon0, lat0.</dd>
129     
130        <dt><a href="map_npoints.html?format=raw">map_npoints.pro</a></dt>
131        <dd> Return the distance in meter between all np0 points P0 and all        np1 points P1 on a sphere.</dd>
132     
133        <dt><a href="neighbor.html?format=raw">neighbor.pro</a></dt>
134        <dd> find the closetest point of (P0) within a list of np1 points P1 Which can be on a sphere  </dd>
135     
136        <dt><a href="quadrilateral2square.html?format=raw">quadrilateral2square.pro</a></dt>
137        <dd> warm (or map) an arbitrary quadrilateral onto a unit square   according to the 4-point correspondences:        (x0,y0) -> (0,0)        (x1,y1) -> (1,0)        (x2,y2) -> (1,1)        (x3,y3) -> (0,1)  This is the inverse function of square2quadrilateral.</dd>
138     
139        <dt><a href="spl_fstdrv.html?format=raw">spl_fstdrv.pro</a></dt>
140        <dd> SPL_FSTDRV returns the values of the first derivative of  the interpolating function at the points X2i.</dd>
141     
142        <dt><a href="spl_incr.html?format=raw">spl_incr.pro</a></dt>
143        <dd>   Given the arrays X and Y, which tabulate a function (with the X[i]  AND Y[i] in ascending order), and given an input value X2, the  SPL_INCR function returns an interpolated value for the given values  of X2.</dd>
144     
145        <dt><a href="spl_keep_mean.html?format=raw">spl_keep_mean.pro</a></dt>
146        <dd>   Given the arrays X and Y, which tabulate a function (with the X[i]  AND Y[i] in ascending order), and given an input value X2, the  SPL_INCR function returns an interpolated value for the given values  of X2.</dd>
147     
148        <dt><a href="square2quadrilateral.html?format=raw">square2quadrilateral.pro</a></dt>
149        <dd> warm (or map) a unit square onto an arbitrary quadrilateral  according to the 4-point correspondences:        (0,0) -> (x0,y0)        (1,0) -> (x1,y1)        (1,1) -> (x2,y2)        (0,1) -> (x3,y3)  The mapping is done using perspective transformation which preserve  lines in all orientations and permit quadrilateral to quadrilateral  mappings.</dd>
150     
151        <dt><a href="testinterp.html?format=raw">testinterp.pro</a></dt>
152        <dd></dd>
153     
154      </dl>
155     
156
157     
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159     
160
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