# HG changeset patch
# User Thomas Junk <thomas.junk@intevation.de>
# Date 1566288621 -7200
# Node ID b8d578e42b4b4d6b202f8d69bc149434c0d4a2b6
# Parent  849d5ca7cc039a29e70d24b4ca9bd0891b4fc783
pdfprint: generate a new transform object instead of manipulating the given one.

See https://github.com/d3/d3-zoom#zoomTransform

diff -r 849d5ca7cc03 -r b8d578e42b4b client/src/components/gauge/HydrologicalConditions.vue
--- a/client/src/components/gauge/HydrologicalConditions.vue	Mon Aug 19 14:23:08 2019 +0200
+++ b/client/src/components/gauge/HydrologicalConditions.vue	Tue Aug 20 10:10:21 2019 +0200
@@ -822,17 +822,12 @@
         let t = d3.event.transform;
         // Set the last zoom level and recalculate x,y for pdf-export
         if (zoomLevel) {
-          t.x = (zoomLevel.x * dimensions.width) / zoomLevel.width;
-          t.k = zoomLevel.k;
-          t.y = zoomLevel.y;
-          scaleForZoom(t);
-          // reset zoomming after drawing for pdf
-          t.k = 1;
-          t.x = 0;
-          t.y = 0;
-        } else {
-          scaleForZoom(t);
+          const tx = (zoomLevel.x * dimensions.width) / zoomLevel.width;
+          const k = zoomLevel.k;
+          const ty = zoomLevel.y;
+          t = d3.zoomIdentity.translate(tx, ty).scale(k);
         }
+        scaleForZoom(t);
       });
       zoom.on("start", () => {
         svg.select(".chart-dot").style("opacity", 0);
diff -r 849d5ca7cc03 -r b8d578e42b4b client/src/components/gauge/Waterlevel.vue
--- a/client/src/components/gauge/Waterlevel.vue	Mon Aug 19 14:23:08 2019 +0200
+++ b/client/src/components/gauge/Waterlevel.vue	Tue Aug 20 10:10:21 2019 +0200
@@ -948,19 +948,13 @@
         if (d3.event.sourceEvent && d3.event.sourceEvent.type === "brush")
           return; // ignore zoom-by-brush
         let t = d3.event.transform;
-        // Set the last zoom level and recalculate x,y for pdf-export
         if (zoomLevel) {
-          t.x = (zoomLevel.x * dimensions.width) / zoomLevel.width;
-          t.k = zoomLevel.k;
-          t.y = zoomLevel.y;
-          scaleForZoom(t);
-          // reset zoomming after drawing for pdf
-          t.k = 1;
-          t.x = 0;
-          t.y = 0;
-        } else {
-          scaleForZoom(t);
+          const tx = (zoomLevel.x * dimensions.width) / zoomLevel.width;
+          const k = zoomLevel.k;
+          const ty = zoomLevel.y;
+          t = d3.zoomIdentity.translate(tx, ty).scale(k);
         }
+        scaleForZoom(t);
       });
       zoom.on("start", () => {
         svg.select(".chart-dot").style("opacity", 0);