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--- wiki:v2:ccc-packets [2018/09/28 22:46]
jfrench
+++ wiki:v2:ccc-packets [2018/10/10 19:07]
pixycam [getBlocks(sigmap, maxBlocks)]
@@ Line 1: / Line 1: @@
 ===== Color Connected Components - Packet Reference =====
+See [[wiki:v2:ccc_api#member-functions|Color Connected Components API]] for more details on sigmap, maxblocks, tracking index, etc.
-==== getBlocks(wait, sigmap, maxBlocks) ====
+==== getBlocks(sigmap, maxBlocks) ====
-^Bit ^Description ^Value ^
+=== Request: ===
-|h0  |Length of packet |2 |
+^Bit ^Description ^Value(s) ^
-|h1  |Type of packet |0x20 |
+|0 - 1  |16-bit sync | 174, 193 (0xc1ae) |
-|1  |??  |x |
+|2  |Type of packet |32 |
-|2  |??     |x |
+|3  |Length of payload |2 |
+|4  |Sigmap - indicate which signatures to receive data from |0 (none) - 255 (all) |
+|5  |Maximum blocks to return     |0 (none) - 255 (all blocks) |
 === Response: ===
-^Bit  ^Description  ^Value ^
+^Byte  ^Description  ^Value(s) ^
-| | | |
+|0 - 1  |16-bit sync | 175, 193 (0xc1af) |
-| | | |
+|2  |Type of packet |33 |
+|3  |Length of payload |14 |
+|4 - 5 |16-bit checksum | sum of payload bytes |
+|6 - 7 |16-bit signature / Color code number  |0 - 255|
+|7 - 8 |16-bit X (center) of block in pixels |0 - 315 |
+|9 - 10 |16-bit Y (center) of block in pixels |0 - 207 |
+|10 - 11 |16-bit Width of block in pixels |0 - 316 |
+|12 - 13 |16-bit Height of block in pixels |0 - 208 |
+|14 - 15 |16-bit Angle of color-code in degrees |-180 - 180 (0 if not a color code) |
+|16 |Tracking index of block (see API for more info)|0 - 255 |
+|17 |Age - number of frames this block has been tracked |0 - 255 (stops incrementing at 255) |

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