1 | #ifdef HAVE_CONFIG_H |
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2 | # include "config.h" |
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3 | #endif |
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4 | |
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5 | #ifdef HAVE_STDLIB_H |
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6 | # include <stdlib.h> |
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7 | #endif |
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8 | #ifdef HAVE_STRING_H |
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9 | # include <string.h> |
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10 | #endif |
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11 | #include <netcdf.h> |
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12 | #include <SDL.h> |
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13 | #include "error.h" |
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14 | #include "globals.h" |
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15 | #include "height_quantity.h" |
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16 | #include "xmalloc.h" |
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17 | |
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18 | int AnugaVis_DefineHeightQuantity(const char *name, |
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19 | double offset, double scale, |
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20 | int red, int green, int blue){ |
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21 | struct height_quantity_simple *height; |
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22 | int ncstatus; |
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23 | int ncvarid; |
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24 | int numdims; |
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25 | /* Check that it's actually in the NetCDF file */ |
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26 | if((ncstatus = nc_inq_varid(anugavis.netcdfId, name, &ncvarid)) != NC_NOERR){ |
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27 | AnugaVis_NetCDFError(ncstatus); |
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28 | return -1; |
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29 | } |
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30 | |
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31 | /* Redefining a quantity? */ |
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32 | for(height = anugavis.heights ; height != NULL ; height = height->next) |
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33 | if(!strcmp(name, height->name)) break; |
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34 | |
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35 | if(height == NULL){ /* Make a new entry. */ |
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36 | if((height = xmalloc(sizeof(struct height_quantity_simple), |
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37 | "AnugaVis_DefineHeightQuantity()")) == NULL) |
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38 | return -1; |
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39 | height->next = anugavis.heights; |
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40 | anugavis.heights = height; |
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41 | } |
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42 | |
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43 | /* If the NetCDF variable is 2-dimensional, then it's dynamic. */ |
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44 | if((ncstatus = nc_inq_varndims(anugavis.netcdfId, |
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45 | ncvarid, &numdims)) != NC_NOERR){ |
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46 | AnugaVis_NetCDFError(ncstatus); |
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47 | return -1; |
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48 | } |
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49 | height->dynamic = (numdims == 2); |
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50 | height->offset = offset; |
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51 | height->scale = scale; |
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52 | height->color = SDL_MapRGB(anugavis.screen->format, red, green, blue); |
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53 | return 0; |
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54 | } |
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55 | |
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56 | void AnugaVis_UndefineHeightQuantity(char *name){ |
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57 | struct height_quantity_simple *height = anugavis.heights; |
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58 | struct height_quantity_simple *nextHeight; |
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59 | if(height == NULL) return; |
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60 | if(!strcmp(name, height->name)){ |
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61 | anugavis.heights = height->next; |
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62 | free(height); |
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63 | return; |
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64 | } |
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65 | for(; height != NULL ; height = height->next) |
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66 | if(height->next == NULL) return; |
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67 | if(!strcmp(name, height->next->name)){ |
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68 | nextHeight = height->next; |
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69 | height->next = height->next->next; |
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70 | free(nextHeight); |
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71 | return; |
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72 | } |
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73 | } |
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