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Viewing changes to imagery/i.ortho.photo/photo.2image/view.c

  • Committer: Bazaar Package Importer
  • Author(s): Francesco Paolo Lovergine
  • Date: 2011-04-13 17:08:41 UTC
  • mfrom: (8.1.7 sid)
  • Revision ID: james.westby@ubuntu.com-20110413170841-ss1t9bic0d0uq0gz
Tags: 6.4.1-1
* New upstream version.
* Now build-dep on libjpeg-dev and current libreadline6-dev.
* Removed patch swig: obsolete.
* Policy bumped to 3.9.2, without changes.

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imagery/i.ortho.photo/photo.2image/view.c
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#include <string.h>
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#include <grass/raster.h>
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#include "globals.h"
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int Configure_view(View * view, char *name, char *mapset, double ns_res, double ew_res  /* original map resolution */
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    )
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{
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    Erase_view(view);
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    view->cell.configured = 0;
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    /* copy the cell name into the view */
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    strcpy(view->cell.name, name);
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    strcpy(view->cell.mapset, mapset);
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    /* determine the map edges */
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    view->cell.left = view->left + (view->ncols - view->cell.head.cols) / 2;
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    view->cell.right = view->cell.left + view->cell.head.cols - 1;
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    view->cell.top = view->top + (view->nrows - view->cell.head.rows) / 2;
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    view->cell.bottom = view->cell.top + view->cell.head.rows - 1;
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    /* remember original resolutions */
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    view->cell.ns_res = ns_res;
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    view->cell.ew_res = ew_res;
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    view->cell.configured = 1;
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    return 0;
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}
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int In_view(View * view, int x, int y)
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{
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    return (x >= view->left && x <= view->right && y >= view->top &&
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            y <= view->bottom);
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}
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int Erase_view(View * view)
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{
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    R_standard_color(BLACK);
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    R_box_abs(view->left, view->top, view->right, view->bottom);
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    return 0;
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}
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double magnification(View * view)
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{
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    if (!view->cell.configured)
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        return ((double)0.0);
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    return (view->cell.ew_res / view->cell.head.ew_res);
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}