Add vetor scaling options

glue_jupyter/bqplot/scatter/layer_artist.py

@@ -226,6 +226,8 @@ def _update_data(self):
             vy = ensure_numerical(self.layer[self.state.vy_att].ravel())
 
             size = 50
+
+            # if self.vector_mark.
             scale = 1
 
             length = np.sqrt(vx**2 + vy**2)

glue_jupyter/common/state_widgets/layer_profile.vue

@@ -15,3 +15,5 @@
         </div>
     </div>
 </template>
+<script setup>
+</script>

glue_jupyter/common/state_widgets/layer_scatter.py

@@ -1,3 +1,5 @@
+from enum import member
+
 import ipyvuetify as v
 import traitlets
 
@@ -51,6 +53,9 @@ class ScatterLayerStateWidget(v.VuetifyTemplate):
     vy_att_items = traitlets.List().tag(sync=True)
     vy_att_selected = traitlets.Int(allow_none=True).tag(sync=True)
 
+    vector_origin_items = traitlets.List().tag(sync=True)
+
+
     def __init__(self, layer_state):
         super().__init__()
 
@@ -94,3 +99,12 @@ def vue_set_colormap(self, data):
                 cmap = member[1]
                 break
         self.layer_state.cmap = cmap
+
+    def vue_set_vector_origin(self, data):
+        origin = 'tail'
+        vector_origins = ['tail', 'middle', 'bottom']
+        for an_origin in vector_origins:
+            if data == an_origin:
+                origin = an_origin
+                break
+        self.layer_state.vector_origin = origin

glue_jupyter/common/state_widgets/layer_scatter.vue

@@ -95,11 +95,11 @@
                 <v-select label="vy" :items="vy_att_items" v-model="vy_att_selected" hide-details />
             </div>
             <div>
-                <v-select label="origin" :items=vector_origin />
+                <v-select label="vector origin" :items="vector_origin_items" :value="glue_state.vector_origin" @change="set_vector_origin" hide-details/>
             </div>
             <div>
                 <v-subheader class="pl-0 slider-label">vector size</v-subheader>
-                <glue-throttled-slider wait="300" min="0" max="100" step="1" :value.sync="glue_state.vector_scaling"
+                <glue-throttled-slider wait="300" min="0" max="1" step="0.01" :value.sync="glue_state.vector_scaling"
                     hide-details />
             </div>
         </template>
@@ -114,11 +114,3 @@
     margin-top: 6px;
 }
 </style>
-
-<script>
-  export default {
-      data: () => ({
-        vector_origin: ['tail', 'middle', 'tip']
-      }),
-  }
-</script>