binary wire format with flatbuffers (#509)

* first flatbuffer schema * do not lint auto-generated files * add flatbuffers package * add flatbuffer module * wire up /data/X/T route * use flatbuffers for matrix data fetc * clarity and comments * add flatbuffer layout route * clean up obsolete code * fix tests * move flake8 config to setup.cfg * add comments * lint * rework layout routes for fbs * add more type support to fbs * lint * add flatbuffer support for annotations * function name improvements * fix botched merge with master * remove unused import * route cleanup for flatbuffers * rename function for clarity * add missing globals to Jest tests * fix client JS tests * fix routes for Python tests * comments for clarity * non-finite floating point hardening * more non-finite number handling * lint * fix tests for summarizeAnnotations * harden diffexp calculation against FP errors * cleanup unused code * lint * add encoding tests for flatbuffers * application type specified as strings * fix spelling error * improve variable names * add note about documentation gap * rename FBS DataFrame to Matrix
2026-10-02 06:38:12 +08:00 · 2019-01-09 14:26:05 -08:00
parent 42e25a1a1f
commit b90447c387
41 changed files with 2317 additions and 266 deletions
@@ -0,0 +1,33 @@
+/*
+Return the [minimum, maximum] extent, of the given typed array, ignoring
+non-finite values (ie, +Infinity, -Infinity).
+
+If undefined or empty array, or array contains only non-finite numbers,
+will return [undefined, undefined]
+*/
+
+function finiteExtent(tarr) {
+  let min;
+  let max;
+  let i;
+
+  for (i = 0; i < tarr.length; i += 1) {
+    const val = tarr[i];
+    if (Number.isFinite(val)) {
+      min = val;
+      max = val;
+      i += 1;
+      break;
+    }
+  }
+  for (; i < tarr.length; i += 1) {
+    const val = tarr[i];
+    if (Number.isFinite(val)) {
+      if (min > val) min = val;
+      if (max < val) max = val;
+    }
+  }
+  return [min, max];
+}
+
+export default finiteExtent;