Extend and fix bugs in some gcode helpers

src/heyarne/line_us/connection.clj

@@ -33,7 +33,7 @@
        (throw (IllegalArgumentException.
                (str ~(name coord) " should be in range [" ~min-v# ", " ~max-v# "] but is " ~coord))))))
 
-(defn- send-command! [^Socket line-us ^String raw-cmd]
+(defn send-command! [^Socket line-us ^String raw-cmd]
   ;; this is basically taken from the Processing example code and the processing
   ;; "Client" class
   (doto (io/output-stream line-us)
@@ -42,7 +42,7 @@
   ;; wait for the response
   (let [res (read-response line-us)]
     (if-not (re-find #"^(ok|hello)" res)
-      (throw (Exception. res))
+      #dbg (throw (Exception. res))
       res)))
 
 (defn send-movement!
@@ -52,7 +52,7 @@
   (validate-coord x)
   (validate-coord y)
   (validate-coord z)
-  (send-command! line-us (str "G01 X" x " Y" y " Z" z))
+  (send-command! line-us (format "G01 X%.0f Y%.0f Z%.0f" (double x) (double y) (double z)))
   coords)
 
 (defn move-home! [^Socket line-us]

src/heyarne/line_us/gcode.clj

@@ -48,7 +48,7 @@
 
   An optional parameter `{:res 10}` can be used to adjust the sampling resolution
   for the shape, if the shape supports it."
-  (comp gcode-verts->gcode-seq ->gcode-verts))
+  (comp #_gcode-verts->gcode-seq ->gcode-verts))
 
 (defn- geom? [x]
   (str/starts-with? (pr-str x) "#thi.ng.geom."))

src/heyarne/line_us/helpers.clj

@@ -2,31 +2,30 @@
   (:require [thi.ng.geom.rect :as rect]
             [thi.ng.math.core :as m]))
 
-(defn g01-bounds
+(defn coord-seq-bounds
   "Returns a rect representing the drawing bounds of a sequence of g01 coords"
-  [g01]
+  [coords]
   (let [bounds [Double/MAX_VALUE Double/MIN_VALUE Double/MIN_VALUE Double/MAX_VALUE]
         [top right bottom left] (reduce (fn [[top right bottom left] [x y _]]
                                           [(min top y) (max right x)
                                            (max bottom y) (min left x)])
                                         bounds
-                                        g01)]
+                                        coords)]
     (rect/rect [left bottom] [right top])))
 
 (defn rescale
   "Returns a new g01 sequence that is proportionally scaled to fit into the
   bounding box passed in as the second argument. Assumes that the top left
   in g01-seq is at [0 0]."
-  [g01-seq [top right bottom left]]
+  [into-bounds g01-seq ]
-  (let [s-bounds (g01-bounds g01-seq)
+  (let [src-bounds (coord-seq-bounds g01-seq)
-        t-bounds (rect/rect [left bottom] [right top])
 ;; we need to translate the bounding box
-        [translate-x translate-y] (m/+ (:p s-bounds) (:p t-bounds))
+        [translate-x translate-y] (m/+ (:p src-bounds) (:p into-bounds))
         ;; and scale it
-        [s-x s-y] (:p s-bounds)
+        [s-x s-y] (:p src-bounds)
-        [t-x t-y] (:p t-bounds)
+        [t-x t-y] (:p into-bounds)
-        [s-width s-height] (:size s-bounds)
+        [s-width s-height] (:size src-bounds)
-        [t-width t-height] (:size t-bounds)
+        [t-width t-height] (:size into-bounds)
         factor (min (/ (+ t-x t-width) (+ s-x s-width)) (/ (+ t-y t-height) (+ s-y s-height)))]
     (map (fn [coord]
            (-> (update coord 0 #(+ translate-x (* % factor)))