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