rave_transform.h

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#ifndef RAVE_TRANSFORM_H
#define RAVE_TRANSFORM_H
 
#include "rave_types.h"
#include "rave_proj.h"
 
typedef struct {
   PJ* inpj;                
   double inxscale;         
   double inyscale;         
   int inxmax;              
   int inymax;              
   UV inUL;                 
   double nodata;           
   double noecho;           
   PJ* outpj;               
   double outxscale;        
   double outyscale;        
   UV outUL;                
   double R;                
   RaveTransformationMethod method;              
   unsigned char* data;     
   RaveDataType type;       
   int stride_xsize;        
} RaveTransform2D;
 
typedef struct {
   int x;             
   int y;             
   double value;      
   double weight;     
   double distance;   
} RaveWeight2D;
 
typedef struct {
   RaveWeight2D* weights;  
   int weightsn;           
   double total_wsum;      
   double nodata;          
   double noecho;          
   int scale_weights;      
} TransformWeight;
 
typedef struct {
   unsigned char* src; 
   RaveDataType type;  
   double elev;        
   int stride;         
} RavePolarField;
 
typedef struct {
   double beamwidth;          
   double nodata;             
   double noecho;             
   double lon;                
   double lat;                
   double geo_height;         
   int azim_uppb;             
   int range_uppb;            
   double azimuth_offset;     
   double scale;              
   double cressmanxy;         
   double cressmanz;          
   int got_cressmanxy;        
   int got_cressmanz;         
   int fieldsn;               
   RavePolarField* fields;    
} RavePolarVolume;
 
double get_array_item_2d(
  unsigned char* data, int x, int y, RaveDataType type, int stride_xsize);
 
void set_array_item_2d(
  unsigned char* data, int x, int y, double v, RaveDataType type, int stride_xsize);
 
double get_array_item_3d(RavePolarVolume* pvol, int e, int r, int a);
 
void set_array_item_3d(RavePolarVolume* pvol, int e, int r, int a, double v);
 
TransformWeight* init_tw(int noi);
 
void free_tw(TransformWeight* v);
 
TransformWeight* get_nearest_weights_2d(int x, int y, UV here_s, RaveTransform2D* tw);
 
TransformWeight* get_bilinear_weights_2d(int x, int y, UV here_s, RaveTransform2D *tw);
 
TransformWeight* get_cubic_weights_2d(int x, int y, UV here_s, RaveTransform2D *tw);
 
TransformWeight* get_cressman_weights_2d(int x, int y, UV here_s, RaveTransform2D* tw);
 
TransformWeight* get_weights_2d(int x, int y, UV here_s, RaveTransform2D* tw);
 
double compute_weights_2d(TransformWeight* tw);
 
#endif /* RAVE_TRANSFORM_H */