Latest Contributions by NathanMellor

I expected this code to just plain work.          mbasemap = new Basemap("https://crittersoft.maps.arcgis.com/home/webmap/viewer.html?webmap=5c7b10ac1e1c4f9ca35efbb505235625");         mbasemap.addLoadStatusChangedListener(this); // create a map with the basemap         ArcGISMap map = new ArcGISMap(mbasemap); However it fails with an exception. "You do not have permissions to access this resource or perform this operation." Can I not access my maps from ArcGISOnline in the Runtime? That was my whole reason for putting them in there.  This webmap is shared with Everyone.  Nathan ... View more

I am creating what is to be a vector tiled map and have created sublayers for different levels of detail.  Ie boundary_z0 boundary_z1  ... boundary_z13plus These correspond to scales in Google Maps/Arcgis Online.  I want boundary_z0 to display at zoom level 0, boundary_z1 to display at zoom level 1, and so on.  Where 0 is an alias to 591657527.591555E8 and 13 is an alias for 72223.819286, if you happen to think better with those kinds of numbers.    This page has the answer to my question - I just don't understand it.  Display layers at certain scales—ArcGIS Pro | ArcGIS Desktop  "To avoid showing features from both layers when viewing your map right at these scale range boundaries, it has been common practice to set the Out Beyond scale range property of the more detailed layer to be one scale unit less than the In Beyond scale range property of the more generalized layer." I definitely want to avoid that. Or my tiles would be up to twice as big.  "The drawback with this approach is that you can create a situation where no data at all draws at the interim scale. This is especially problematic if you intend to create a vector tile package from the map." Yeah, that would be bad if nothing draws in the in-between scales. And I *do* intend to create a vector tile package.  "A better solution is to set both the In Beyond and Out Beyond scale range properties to the same scale in this situation, and set your map to draw up to and including the maximum scale in scale ranges" That's what I want to do then. But it isn't clear enough to me. An actual example would help. And are they saying we can "avoid showing features from both layers" or that we should just live with that problem? This recommended setting will "draw up to including the maximum scale". But will it also "draw down to, but not including, the minimum scale"? An important piece of information I find missing.  I've started with this.  Sublayer In beyond(maximum scale) Out beyond(minimum scale) boundary_z0 0 <None> boundary_z1 1 1 boundary_z2 2 2 .... boundary_z13plus <none> 13 But I think this is wrong. So is the correct solution this? Sublayer In beyond(maximum scale) Out beyond(minimum scale) boundary_z0 0 <None> boundary_z1 1 0 boundary_z2 2 1 .... boundary_z13plus <none> 12 or perhaps this? Sublayer In beyond(maximum scale) Out beyond(minimum scale) boundary_z0 1 <None> boundary_z1 2 1 boundary_z2 3 2 .... boundary_z13plus <none> 13 Or do I have to get fancier, create my own scales, and do something like this? Sublayer In beyond(maximum scale) Out beyond(minimum scale) boundary_z0 1.5 0.5 boundary_z1 2.5 1.5 boundary_z2 3.5 2.5 .... boundary_z13plus <none> 12.5 Thanks for any insight. I can't afford an "off by 1" error here.  ... View more

Vector Tiled maps show promise of allowing you to style them later in different ways.  However, that doesn't actually work, does it? I have observed that ArcGIS PRO, when creating a vector tile package, strips all attributes it doesn't think it needs for the style defined on the map in ArcGIS PRO.  For size, this is a good optimization. But we do not have control over what attributes are kept.  In addition, it also changes the attributes it does keep to have names and value ranges of its own choosing.  For example, there may a rule to apply a certain style to a line if height%100 =0.  The resulting vector tile will have something like:  "_symbol": "1" Making the attributes unrecognizable to anyone who would want to create changes to the style.  What this means is that we would have to anticipate every possible style rule before exporting a Vector Tile Package. You could change colors later, but that is about all.   If you colored all roads green, and later want to make the major freeways yellow and bolder, you are out of luck.  So maybe you would want to get your first style right, and then come back to ArcGIS PRO to restyle, create a new style, and then export the style without exporting all the tiles again. But you can't do that either.  If you managed to find a perfect style in mapbox vector style specification, you would have to reverse engineer all its rules and try to recreate them in ArcGIS Pro.  I'll note that there are tools out there, even open source ones, that can create vector tiles in a more predictable fashion.   However, ESRI has worked really hard to make sure that the server or runtime does not work with any vector tiles not created by ArcGIS PRO.  Am I correct, or is there something I am missing? ... View more

VTPKs tend to be unforgiving if you try to modify them There is a tool - Extract package - that will extract the tiles and other files.   There is no way I see of reversing the process. Simply zipping it back up (uncompressed) will not do, because it doesn't want the tiles in exploded format I found this link for packing files in your compactV2.   GitHub - Esri/raster-tiles-compactcache: Compact Cache V2 is used by ArcGIS to store raster tiles. The bundle file struc…  But is it meant to work on Vector tiles?   The root.json of a vtpk will say: "resourceInfo":{"styleVersion":8,"tileCompression":"gzip","cacheInfo":{"storageInfo":{"packetSize":128,"storageFormat":"compactV2"}}}} It mentions "compactV2" which pointed me to this code.  But some other things cause me to doubt.  1. The set of files becomes 50 times bigger. Not very compact.  2. ArcGIS Pro and ArcGISOnline cannot find any of the tiles in the new vtpk.  I may have good reasons to use scripts to repackage tiles in vtpks. The vtpks often take days to weeks to generate and I might want to avoid redoing them just to get smaller areas.  ... View more