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/**
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 * @file rply.h
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 * @brief RPly library, read/write PLY files by Diego Nehab, Princeton University
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 */
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#ifndef __GEOMETRY_PLY_H
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#ifndef __GEOMETRY_PLY_H
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#define __GEOMETRY_PLY_H
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#define __GEOMETRY_PLY_H
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/* ----------------------------------------------------------------------
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/* ----------------------------------------------------------------------
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 * RPly library, read/write PLY files
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 * RPly library, read/write PLY files
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 * Diego Nehab, Princeton University
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 * Diego Nehab, Princeton University
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 * pdata/idata: user data that will be passed to callback
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 * pdata/idata: user data that will be passed to callback
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 *
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 *
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 * Returns 0 if no element or no property in element, returns the
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 * Returns 0 if no element or no property in element, returns the
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 * number of element instances otherwise.
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 * number of element instances otherwise.
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 * ---------------------------------------------------------------------- */
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 * ---------------------------------------------------------------------- */
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long ply_set_read_cb(p_ply ply, const char *element_name,
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int ply_set_read_cb(p_ply ply, const char *element_name,
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        const char *property_name, p_ply_read_cb read_cb,
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        const char *property_name, p_ply_read_cb read_cb,
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        void *pdata, long idata);
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        void *pdata, int idata);
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/* ----------------------------------------------------------------------
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/* ----------------------------------------------------------------------
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 * Returns information about the element originating a callback
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 * Returns information about the element originating a callback
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 *
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 *
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 * argument: handle to argument
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 * argument: handle to argument
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 *     (if non-null)
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 *     (if non-null)
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 *
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 *
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 * Returns 1 if successfull, 0 otherwise
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 * Returns 1 if successfull, 0 otherwise
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 * ---------------------------------------------------------------------- */
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 * ---------------------------------------------------------------------- */
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int ply_get_argument_element(p_ply_argument argument,
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int ply_get_argument_element(p_ply_argument argument,
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        p_ply_element *element, long *instance_index);
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        p_ply_element *element, int *instance_index);
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/* ----------------------------------------------------------------------
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/* ----------------------------------------------------------------------
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 * Returns information about the property originating a callback
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 * Returns information about the property originating a callback
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 *
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 *
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 * argument: handle to argument
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 * argument: handle to argument
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 * value_index: receives the index of current property value (if non-null)
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 * value_index: receives the index of current property value (if non-null)
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 *
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 *
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 * Returns 1 if successfull, 0 otherwise
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 * Returns 1 if successfull, 0 otherwise
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 * ---------------------------------------------------------------------- */
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 * ---------------------------------------------------------------------- */
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int ply_get_argument_property(p_ply_argument argument,
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int ply_get_argument_property(p_ply_argument argument,
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        p_ply_property *property, long *length, long *value_index);
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        p_ply_property *property, int *length, int *value_index);
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/* ----------------------------------------------------------------------
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/* ----------------------------------------------------------------------
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 * Returns user data associated with callback
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 * Returns user data associated with callback
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 *
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 *
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 * pdata: receives a copy of user custom data pointer (if non-null)
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 * pdata: receives a copy of user custom data pointer (if non-null)
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 * idata: receives a copy of user custom data integer (if non-null)
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 * idata: receives a copy of user custom data integer (if non-null)
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 *
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 *
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 * Returns 1 if successfull, 0 otherwise
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 * Returns 1 if successfull, 0 otherwise
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 * ---------------------------------------------------------------------- */
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 * ---------------------------------------------------------------------- */
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int ply_get_argument_user_data(p_ply_argument argument, void **pdata,
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int ply_get_argument_user_data(p_ply_argument argument, void **pdata,
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        long *idata);
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        int *idata);
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/* ----------------------------------------------------------------------
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/* ----------------------------------------------------------------------
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 * Returns the value associated with a callback
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 * Returns the value associated with a callback
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 *
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 *
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 * argument: handle to argument
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 * argument: handle to argument
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 * ninstances: receives the number of instances of this element (if non-null)
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 * ninstances: receives the number of instances of this element (if non-null)
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 *
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 *
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 * Returns 1 if successfull or 0 otherwise
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 * Returns 1 if successfull or 0 otherwise
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 * ---------------------------------------------------------------------- */
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 * ---------------------------------------------------------------------- */
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int ply_get_element_info(p_ply_element element, const char** name,
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int ply_get_element_info(p_ply_element element, const char** name,
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        long *ninstances);
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        int *ninstances);
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/* ----------------------------------------------------------------------
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/* ----------------------------------------------------------------------
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 * Iterates over all properties by returning the next property.
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 * Iterates over all properties by returning the next property.
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 * Call with NULL to return handle to first property.
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 * Call with NULL to return handle to first property.
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 *
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 *
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 * name: name of new element
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 * name: name of new element
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 * ninstances: number of element of this time in file
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 * ninstances: number of element of this time in file
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 *
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 *
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 * Returns 1 if successfull, 0 otherwise
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 * Returns 1 if successfull, 0 otherwise
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 * ---------------------------------------------------------------------- */
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 * ---------------------------------------------------------------------- */
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int ply_add_element(p_ply ply, const char *name, long ninstances);
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int ply_add_element(p_ply ply, const char *name, int ninstances);
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/* ----------------------------------------------------------------------
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/* ----------------------------------------------------------------------
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 * Adds a new property to the last element added by ply_add_element
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 * Adds a new property to the last element added by ply_add_element
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 *
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 *
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 * ply: handle returned by ply_create
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 * ply: handle returned by ply_create