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Commit 539118ab authored by Paolo Veglio's avatar Paolo Veglio
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    mvcm/__init__.py
    + 1
    − 1
    View file @ 539118ab
    """Set up version.""" """Set up version."""
    __version__ = "0.2.1" __version__ = "0.2.2"
    mvcm/c_tools/get_b1_thresholds.c
    + 104
    − 61
    View file @ 539118ab
    ...@@ -32,13 +32,13 @@ calls: ...@@ -32,13 +32,13 @@ calls:
    #include <stdio.h> #include <stdio.h>
    #include <math.h> #include <math.h>
    #include "thresholds.h" // #include "thresholds.h"
    #include "pixel.h" // #include "pixel.h"
    /**********************************************************************/ /**********************************************************************/
    int get_b1_thresholds(float *locut, float *hicut, float *midpt, int get_b1_thresholds(float ndvibk, float sctang, float *locut, float *midpt, float *hicut,
    float *power) float *power)
    ...@@ -53,62 +53,118 @@ int get_b1_thresholds(float *locut, float *hicut, float *midpt, ...@@ -53,62 +53,118 @@ int get_b1_thresholds(float *locut, float *hicut, float *midpt,
    int interp=0; int interp=0;
    int a, i, j, k, indvi, icnf, irtn; int a, i, j, k, indvi, icnf, irtn;
    float des_ndvi = 0.3;
    static float delta_ndvi_bin = 0.1; static float delta_ndvi_bin = 0.1;
    float x, x1, x2, y1, y2; float x, x1, x2, y1, y2;
    float coeff[10][3][4], thr[3], thr_adj[3]; float coeff[10][3][4], thr[3], thr_adj[3];
    float thr_adj_fac_land = 0.0;
    float thr_adj_fac_desert = 0.1;
    float coeffs_land[10][3][4] = {
    {
    {32.00000000, 0.00000000, 0.00000000, 0.00000000},
    {42.00000000, 0.00000000, 0.00000000, 0.00000000},
    {52.00000000, 0.00000000, 0.00000000, 0.00000000}
    },
    {
    {24.00000000, 0.00000000, 0.00000000, 0.00000000},
    {28.00000000, 0.00000000, 0.00000000, 0.00000000},
    {32.00000000, 0.00000000, 0.00000000, 0.00000000}
    },
    {
    {99.13076923, -2.00907925, 0.01492075, -0.00003531},
    {122.19090909, -2.32652292, 0.01659848, -0.00003681},
    {142.66293706, -2.57860528, 0.01773252, -0.00003685}
    },
    {
    {85.07902098, -1.59413364, 0.01123310, -0.00002556},
    {144.56573427, -2.81054779, 0.01967366, -0.00004324},
    {204.35454545, -4.03411810, 0.02816667, -0.00006103}
    },
    {
    {85.03846154, -1.50831391, 0.01006760, -0.00002199},
    {165.15314685, -3.24716783, 0.02255594, -0.00004965},
    {242.06363636, -4.90912587, 0.03445455, -0.00007587}
    },
    {
    {81.00979021, -1.37731935, 0.00881294, -0.00001859},
    {220.36783217, -4.44111888, 0.03087762, -0.00006888},
    {359.72587413, -7.50491841, 0.05294231, -0.00011917}
    },
    {
    {76.94055944, -1.35441725, 0.00896096, -0.00001952},
    {172.36783217, -3.33144911, 0.02242308, -0.00004810},
    {267.90909091, -5.31620047, 0.03597727, -0.00007698}
    },
    {
    {85.83006993, -1.55480575, 0.01025932, -0.00002216},
    {160.73706294, -3.07291375, 0.02041900, -0.00004330},
    {237.37622378, -4.63444833, 0.03091317, -0.00006525}
    },
    {
    {105.02447552, -1.98017094, 0.01319522, -0.00002877},
    {135.50699301, -2.59097902, 0.01749301, -0.00003811},
    {165.33006993, -3.18872183, 0.02171387, -0.00004734}
    },
    {
    {105.02447552, -1.98017094, 0.01319522, -0.00002877},
    {135.50699301, -2.59097902, 0.01749301, -0.00003811},
    {165.33006993, -3.18872183, 0.02171387, -0.00004734}
    }
    };
    float coeffs_desert[3][3][4] = {
    {
    {282.74916084, -5.42869658, 0.03660781, -0.00008092},
    {344.87048951, -6.80660839, 0.04770163, -0.00010991},
    {407.83734266, -8.20392385, 0.05894114, -0.00013926},
    },
    {
    {229.50727273, -4.31606061, 0.02868182, -0.00006212},
    {316.38517483, -6.41910256, 0.04603089, -0.00010787},
    {403.78188811, -8.52743395, 0.06335781, -0.00015340},
    },
    {
    {239.32391608, -4.49928127, 0.02977214, -0.00006436},
    {270.31741259, -5.33625680, 0.03757168, -0.00008609},
    {301.76013986, -6.18557498, 0.04546562, -0.00010806},
    }
    };
    // Transfer all coefficients to one array.
    i = 0; // Transfer all coefficients to one array.
    for (i=0; i<10; i++) {
    for (j=0; j<3; j++) { for (j=0; j<3; j++) {
    for( k=0; k<4; k++) { for (k=0; k<4; k++) {
    if(pxin.ndvibk < des_ndvi[0]) {
    coeff[0][j][k] = b8ndvi0[i];
    coeff[1][j][k] = b8ndvi1[i];
    coeff[2][j][k] = b8ndvi2[i];
    // printf("coeffs8: %d %d %d %f %f\n",i, j, k, coeff[2][j][k], b8ndvi2[i]);
    }
    else {
    coeff[0][j][k] = b1ndvi0[i];
    coeff[1][j][k] = b1ndvi1[i];
    coeff[2][j][k] = b1ndvi2[i];
    coeff[3][j][k] = b1ndvi3[i];
    coeff[4][j][k] = b1ndvi4[i];
    coeff[5][j][k] = b1ndvi5[i];
    coeff[6][j][k] = b1ndvi6[i];
    coeff[7][j][k] = b1ndvi7[i];
    coeff[8][j][k] = b1ndvi8[i];
    coeff[9][j][k] = b1ndvi9[i];
    // printf("coeffs1: %d %d %d %f %f\n",i, j, k, coeff[2][j][k], b1ndvi2[i]);
    }
    i++;
    if(ndvibk < des_ndvi) {
    coeff[i][j][k] = coeffs_desert[i][j][k];
    if (i > 3) {
    break;
    }
    }
    else {
    coeff[i][j][k] = coeffs_land[i][j][k];
    } }
    } }
    }
    // printf("\nband 1, 8 coefficients initialized \n"); }
    /* Compute thresholds for current pixel as functions of background /* Compute thresholds for current pixel as functions of background
    NDVI and scattering angle. NDVI and scattering angle.
    */ */
    // Check for special cases and fill values ('ndvibk'=32.767). // Check for special cases and fill values ('ndvibk'=32.767).
    if(pxin.ndvibk < fill_ndvi1[0] && pxin.ndvibk > fill_ndvi2[0]) { if(ndvibk < 32.767 && ndvibk > 0) {
    if(pxin.ndvibk < ndvi_bnd1[0]) { if(ndvibk <0.05) {
    indvi = 0; indvi = 0;
    x = 0.0; x = 0.0;
    y2 = 0.0; y2 = 0.0;
    interp = 0; interp = 0;
    } }
    else if(pxin.ndvibk >= ndvi_bnd2[0]) { else if(ndvibk >= 0.95) {
    indvi = 9; indvi = 9;
    x = 0.0; x = 0.0;
    y2 = 0.0; y2 = 0.0;
    ...@@ -119,18 +175,17 @@ int get_b1_thresholds(float *locut, float *hicut, float *midpt, ...@@ -119,18 +175,17 @@ int get_b1_thresholds(float *locut, float *hicut, float *midpt,
    } }
    if(interp) { if(interp) {
    a = ((pxin.ndvibk / delta_ndvi_bin) - 0.5); a = ((ndvibk / delta_ndvi_bin) - 0.5);
    if(a < 0) { if(a < 0) {
    indvi = 0; indvi = 0;
    } }
    else { else {
    indvi = a; indvi = a;
    } }
    // indvi = min(nbin_ndvi, max(0, int((pxin.ndvibk / delta_ndvi_bin) - 0.5)) );
    x1 = delta_ndvi_bin*indvi + delta_ndvi_bin/2.0; x1 = delta_ndvi_bin*indvi + delta_ndvi_bin/2.0;
    x2 = x1 + delta_ndvi_bin; x2 = x1 + delta_ndvi_bin;
    x = (pxin.ndvibk - x1) / ( x2 - x1 ); x = (ndvibk - x1) / ( x2 - x1 );
    if(x < 0.0) x = 0.0; if(x < 0.0) x = 0.0;
    if(x > 1.0) x = 1.0; if(x > 1.0) x = 1.0;
    ...@@ -139,32 +194,24 @@ int get_b1_thresholds(float *locut, float *hicut, float *midpt, ...@@ -139,32 +194,24 @@ int get_b1_thresholds(float *locut, float *hicut, float *midpt,
    for( icnf=0; icnf<3; icnf++) { for( icnf=0; icnf<3; icnf++) {
    y1 = coeff[indvi][icnf][0] + y1 = coeff[indvi][icnf][0] +
    (coeff[indvi][icnf][1] * pxin.sctang) + (coeff[indvi][icnf][1] * sctang) +
    (coeff[indvi][icnf][2] * powf(pxin.sctang,2)) + (coeff[indvi][icnf][2] * powf(sctang,2)) +
    (coeff[indvi][icnf][3] * powf(pxin.sctang,3)); (coeff[indvi][icnf][3] * powf(sctang,3));
    if(interp) { if(interp) {
    y2 = coeff[indvi+1][icnf][0] + y2 = coeff[indvi+1][icnf][0] +
    (coeff[indvi+1][icnf][1] * pxin.sctang) + (coeff[indvi+1][icnf][1] * sctang) +
    (coeff[indvi+1][icnf][2] * powf(pxin.sctang,2)) + (coeff[indvi+1][icnf][2] * powf(sctang,2)) +
    (coeff[indvi+1][icnf][3] * powf(pxin.sctang,3)); (coeff[indvi+1][icnf][3] * powf(sctang,3));
    } }
    thr[icnf] = ((1.0 - x) * y1) + (x * y2); thr[icnf] = ((1.0 - x) * y1) + (x * y2);
    if(pxin.ndvibk < des_ndvi[0]) { if(ndvibk < des_ndvi) {
    thr_adj[icnf] = thr[icnf] * thr_adj_fac_desert[0]; thr_adj[icnf] = thr[icnf] * thr_adj_fac_desert;
    } }
    else { else {
    thr_adj[icnf] = thr[icnf] * thr_adj_fac_land[0]; thr_adj[icnf] = thr[icnf] * thr_adj_fac_land;
    } }
    // printf("ndvi thr: %f %f %f %f %f %f %f\n", des_ndvi[0], fill_ndvi1[0], fill_ndvi2[0],
    // ndvi_bnd1[0], ndvi_bnd2[0], thr_adj_fac_desert[0], thr_adj_fac_land[0]);
    // printf("coeffs: %f %f %f %f %f %f %f %f\n", coeff[indvi][icnf][0], coeff[indvi][icnf][1],
    // coeff[indvi][icnf][2], coeff[indvi][icnf][3], coeff[indvi+1][icnf][0], coeff[indvi+1][icnf][1],
    // coeff[indvi+1][icnf][2], coeff[indvi+1][icnf][3]);
    // printf("interpolation: %d %d %f %f %f %f %f\n", indvi, icnf, pxin.sctang, y1, y2, thr[icnf], thr_adj[icnf]);
    } }
    *(hicut) = (thr[0] + thr_adj[0]) / 100.0; *(hicut) = (thr[0] + thr_adj[0]) / 100.0;
    ...@@ -182,10 +229,6 @@ int get_b1_thresholds(float *locut, float *hicut, float *midpt, ...@@ -182,10 +229,6 @@ int get_b1_thresholds(float *locut, float *hicut, float *midpt,
    } }
    // printf("\nSubroutine get_b1_thresholds\n");
    // printf("%d %d %d %f %f %f %f %f %f %f %f \n", irtn, interp, indvi, pxin.ndvibk, pxin.sctang,
    // x1, x2, x, *(locut), *(midpt), *(hicut));
    return irtn; return irtn;
    } }
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