1: Scott Harrison's RAT Notes
2: (written in RAN format.. "ridiculous ascii notation")
3: 09/27/1999
4:
5: Start
6:
7: Who is using RAT?
8: Instructor/Student/Guest
9: Domain
10:
11: file names
12: [domain]_[user]_[resource].rat
13:
14: to do:
15: * implement fancy resource rat widget
16:
17:
18: * implement fancy resource linking information interface
19: widget
20:
21:
22: * implement resources on rat
23:
24:
25:
26: Program documentation
27: GLOBAL VARIABLES
28:
29: row array maps row id to display (example, d=row[i] where 'd' is display and 'i' is id)
30: used by insertrow, findrow, horizontal, joinres, draw, main
31:
32: maxrow scalar number of elements-2 in row array (the last element number in the array, -1 for empty array)
33: used by insertrow, findrow, horizontal, joinres, draw
34:
35: col array maps col id to display (example, d=row[i] where 'd' is display and 'i' is id)
36: used by insertrow, insertcol, findcol, maprow, comingthru, horizontal, joinres, drawrow, draw, main
37:
38: maxcol scalar number of elements-2 in col array (the last element number in the array, -1 for empty array)
39: used by insertcol, findcol, maprow, comingthru, insertport, drawrow, draw
40:
41: colmap array in order of display ids which object is in which column
42: used by maprow, comingthru, insertport, horizontal, drawrow, draw,
43:
44: colmap2 array temporary
45: used by drawrow
46: colmap3 array temporary
47: used by drawrow
48: colmap4 array temporary
49: used by drawrow
50: colmap5 array temporary
51: used by drawrow
52:
53: obj array appended array with drawing objects (which are blocks, verticals, horizontals, and conditions), never emptied
54: used by insertrow, maprow, insertport, addobj, horizontal, joinres, drawrow, draw, main
55:
56: maxobj scalar number of values in obj array-2 (last element, -1 for empty)
57: used by NOTHING
58:
59: rowcont array object ids in a row
60: used by insertrow, maprow, addobj, drawrow, draw, main
61:
62: rowtype array row ids to type
63: used by insertrow, drawrow, main
64:
65: coltype array col ids to type
66: used by insertcol, insertport, drawrow, main
67:
68: rrow array display to id (reverse hash of row)
69: used by draw
70:
71: rcol array display to id (reverse hash of row)
72: used by drawrow, draw
73:
74: cw array column width (temporary)
75: used by drawcell, draw
76:
77: rh array row height (temporary)
78: used by drawrow, draw,
79:
80: data1,data2,data3,data4 array used to buffer memory so that javascript does not CRASH!
81: used by drawrow, insertrow, insertport
82:
83:
84:
85: functions
86:
87: main - invokes RAT
88: \
89: \
90: initializes rows, with resources labelled 5, 4, 3, and 7
91: insert thirteen columns from the left side
92: perform 3 testing swaps
93: initialize maxrow
94: define starting objects (blocks: 3,4,5,7)
95: create 12 joinings between these resources! (joinres ... see below)
96: draw in debugging editting mode!
97: \ b&rowID&colID:inObj:outObj:outCond&...
98: \ h&rowID&incolID:outcolID&inObj:outObj&inupdown:outupdown
99: \ v&colID&inObj:outObj&updown
100: \ simple javascript /
101: \ / /
102: open, configure, and clear a debugging javascript window/ /
103: | |
104: go through all objects and display object information -----------------------
105: |
106: write out the value of col array ------- counting col ids from 0 to maxcol, print out a comma separated list of display locations
107: |
108: write out the value of row array ------- counting row ids from 0 to maxrow, print out a comma separated list of display locations
109: |
110: find all the display rows (findrow) from 0 to last row, ------------------------------ findrow: does this my running through all rows and waiting till the value of an array
111: | index matches the row to display, returns row id
112: map this row (maprow), and output the results (colmap and rowcont) onto
113: |________________________________
114: | \
115: | -- a debugging window with column id, colmap, and rowcont
116: | where colmap specifies where objects occur within a row based on "display column" location
117: | where rowcont is the objects within a row and
118: |
119: |
120: |
121: initialize display-to-id array rrow (so that rrow[display] equals original row id)
122: |
123: initialize display-to-id array rcol (so that rcol[display] equals original col id)
124: |
125: initialize row height and column width values where rh[1] is short row, rh[2] is tall row, cw[1] is skinny column, cw[2] is fat column
126: |
127: set javascript RAT display window options (javascript stuff...)
128: |
129: output HTML beginning to RAT display window
130: |
131: run through the rows to display, convert from display row # to row id (rrow) and draw in edit mode (drawrow)
132: |
133: |
134: drawrow begins by clearing out and initializing
135: these temporary arrays
136: colmap,colmap2,colmap3,colmap4,colmap5
137: output HTML beginning to row set to rowtype height (from row id)
138: if there are contents in the row (rowcont[jid] display them (else just end HTML row)
139: run through all the objects in row
140: if object is a 'b'lock object
141: do a lot of amazing things to position resource within block
142: and draw arrows connecting into block in another amazing feat of code
143: if object is a 'h'orizontal object
144: grab input column id and output column id
145: and depending whether input is less than output in display position
146: draw left-right arrow line or right-left arrow line
147: and set leftmost position and rightmost position
148: look at inupdown and outupdown
149: if inupdown (means what ??) then
150: draw top-to-right line, set colmap2 and colmap3
151: else draw right-to-down line
152: if outupdown (means what ??) then
153: draw top-to-left line, set colmap2 and colmap3
154: else draw left-to-down line
155: if object is a 'v'ertical object
156: set left to display column and USE THIS as the position
157: if there is another element found in the colmap
158: it must be horizontal so draw top-down-right-left intersection ('tdrl')
159: else draw top-to-down or down-to-top depending on 'v'ertical object specification
160: set colmap2[left] and colmap3[left] to a plain vertical line
161: run through columns and draw cells
162: drawcell draws in edit mode html stuff ------------------------------------- rtype is set to type of row, the cell is drawn with drawcell
163: then using colmap2 and colmap3 draw two more up-down elements
164: in rows below if rowtype is 2
165:
166:
167:
168:
169:
170:
171: ***************
172: joinres from A to B
173:
174: calculate where in the middle of first object is a good place to insert outcoming path
175: calculate where in the middle of second object is a good place to insert incoming path
176: insert the ports based on the objects, the distance from middle of one object to other object, and direction
177: if A is below B, then loop around..set updown!
178: else set updown the other way
179: if inrow equals outrow
180: just draw connecting horizontal element
181: if updown one way then go from row to row finding good columns to go through (comingthru)
182: if there is NO GOOD COLUMN THEN INSERT A ROW! (insertrow)
183: if updown the other way then go from row to row finding good columns to go through (comingthru)
184: if there is NO GOOD COLUMN THEN INSERT A ROW! (insertrow)
185:
186: ***************
187: comingthru
188: see where you can bulldoze..more to write here
189:
190: ***************
191: insertrow
192: make sure you can bulldoze..more to write here
193:
194:
195: Help Documentation
196: on RAT
197:
198: Developer Documentation
199: on RAT
200:
201:
202:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to rat.txt CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / doc / rat