Dali VM : Mosaic

Tables of Contents

Allocation Primitives

mosaic_new  width height

• Creates a mosaic of width and height and returns a handle to it.

mosaic_free mos

• Frees up all the memory associated with all the nodes of the mosaic.

iterator_new mos

• Creates a iterator for the mosaic mos and returns a handle to it.  An iterator is needed while creating a mosaic. Basically, it keeps track of where to add the next image in the mosaic mos.

iterator_free  iterate

• Frees up the memory associated with the iterator.

Manipulation and Query Primitives

mosaic_add_next iterate image

• Adds the image to the next position following the serpentine zigzag motion. The iterator iterate keeps track of where to insert the next node. Returns -1 in case of error or the mosaic is already full, otherwise returns 1.

mosaic_set_right_transform mos xpos ypos trans

• Sets the right transform of the node at location (xpos, ypos) in the mosaic mos  to value trans(which is a list of five elements)

mosaic_set_bottom_transform mos xpos ypos trans

• Sets the bottom transform of the node at location (xpos, ypos) in the mosaic mos to value trans (which is a list of five elements)

mosaic_get_image mos xpos ypos

• Returns the BitImage associated with the node at location (xpos,ypos) in the mosaic mos.

Processing Primitives

mosaic_fill_gaps mos

• Interpolates the missing right or bottom transform at any of the nodes in the mosaic mos.

mosaic_check_all_connected mos

• Checks whether the right and bottom links are present for each nodes for the mosaic mos. Returns negative values depending upon the missing links, otherwise returns 1 for fully connected mosaic.

mosaic_compute_composite mos

• Computes the composite transform for each of the node of the mosaic mos.

Last updated: 10/25/04 10:33:49 PM