Latest Contributions by MartinPospisil

For reordering fields in the attribute table (GDB FC) there are lots of solutions, e.g.: Reordering fields (permanently) in file geodatabase using ArcGIS Desktop? How do I change the attribute field order in a feature class To avoid overwriting the field names list in the python script each time I´d like to create a tool with Model Builder. To integrate the script within the toolbox parameters need to be defined. For this I found the following thread (similar code to the previous link with some changes in the end of the script): Formatting parameters for a field reordering tool Parameters based on the 1th thread (by new_field_order parameter, multiple values allowed): Parameter definition based on the 3ththread: Although the input and output parameters were set correctly and the new_field_order variable was defined as a blank list I´m dealing with 2 problems when I open the script in the toolbox: The field names don´t appear so I cannot change their range (although the new_field_order parameter was set as string where multiple values are allowed). The output FC cannot be created in the dialog box. To solve this problem, I suggest I have to implement the script in the model builder. My idea was to use the “create a new FC tool” and define the output FC as a parameter. For the out_fc variable in the script properties, I can set derived as type but I don´t understand why I cannot select the created FC as a value by “Obtained from”. I´m wondering what I´m doing wrong because the python script I used compared to the second thread is exactly the same but I cannot define the field names (maybe the script functions only for SHP but no for GDB FC?) I also tried to use the Output FC (Create FC tool) for the in_fc but still I cannot see any field names. I also tried to use the Output FC (Create FC tool) for the in_fc but still I cannot see any field names. Do you have any ideas how to set the parameters or modify the model so I can at least I can define the order of field names within the box: In the advanced version I have created a simple model (and it functions well): (or I can use the X-Ray for ArcCatalog add-in) but in the basic version the field order within the merge tool (Field Mapping) cannot be changed by up/down arrows). Listing the field names and changing their order as strings in the arcpy console (if you have lots of field names) is pretty time-consuming. Many thanks for your suggestions! ... View more

Dear Esri community, I have a question regarding the available programming languages (libraries) for the Developer Edition of the ArcGIS Web App Builder to customize existing or developing new widgets. Are there other APIs except the JavaScript or CSS available which I can use (e.g. Python API)? I´m asking because I would like to create a new widget but I am only familiar with Python and not with JavaScript or CSS… Thank you for your answers. ... View more

Dear community, I´d like to calculate the shortest path between the residents of scholars / students (age 6 – 18) and the bus stops or the schools (Closest Facility Layer in Network Analyst). Facilities: bus stops + schools Incidents: residents of scholars / students Problem: Not all of the facilities should be automatically considered as candidates due to age restrictions (e.g. for children age 6-10 only school types A, B, C as candidates; for children in the age 10-16 only school types A, D, F etc. …) Neither in the properties of the facilities and incidents nor in the layer properties I can find a parameter which would fulfill this requirement. Is it possible at all in the Network Analyst to set a parameter which allows that for each of the incidents only some facilities will be considered for the calculations? My only idea is to split my FCs in different categories and calculate the CF for each of the alternative (e.g. type 1: facilities: bus stops + school type A, B, C // incidents: children 6-10          type 2: facilities bus stops + schools A, D, F // incidents: children 11-15          etc. …) But this is very time-consuming and ineffective. I know I can set restrictions for my network layer but I need this for facilities... I would really appreciate any help. Thank you in advance. ... View more

Dear community, I´m trying to create a simple model which would select each feature from a FC (streets polylines with vertexes and edges) and transform each of them into a route using the “Create Routes” tool (in a new FC). In this model I don´t want to prefer any of the 4 coordinate priorities (should be optional) but if I left this parameter free the error 000192: Invalid value for coordinate_priority” appears. Next problem is that after running the model I just got a route for the last attribute resp. a FC with only 1 item. I know I´m doing anything wrong with the iteration variable but don´t know what. Could you please help how to transform each feature without any coordinate priority (if it´s possible at all) resp. how to change the it to get all of the features and not only the last one. I will need the routes for other calculations and would appreciate any help! Thanks in advance. ... View more

Hello all!   I cannot find the way how to create a distance matrix from a point layer. If I use the point distance tool from the proximity toolbox I just get a table with the distances between each point within the layer but I need a 1:1 data matrix (rows and columns as points, values as distances and the diagonal with 0 values). There must be certainly a way how to create this… I need the distance matrix for other calculations. I am using ArcGIS 10.3.1 for Desktop (Advanced Licence). Do you have any ideas?   Thanks for four support. ... View more