Introduction to Geo Attributes

In mapedit: Interactive Editing of Spatial Data in R

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  eval = FALSE
)

Tests

These tests are designed to step through and manually check different features of the application. For each test within the app you will create and modify geometry and attributes. Then using mapview check that the outputs are as expected.

Start with no input

1. Launch app with no input
2. add a new row
3. add geometry to both rows
4. add a column
5. edit attributes

library(mapedit)

sf1 <- editAttributes(zoomto = 'Montana')

mapview::mapview(sf1)

Start with a data.frame

1. Launch app with data.frame
2. add geometry to each row
3. add a column
4. add a new row (ensure new row form clears after button click)
5. edit attributes

data <- data.frame(
  name = c('SiteA', 'SiteB'),
  type = factor(c('park', 'zoo'), levels = c('park', 'factory', 'zoo', 'warehouse')),
  size = c(35, 45),
  stringsAsFactors = FALSE
)

sf2 <- editAttributes(data, zoomto = 'Montana')

mapview::mapview(sf2)

Start with an existing sf object

1. Launch app with sf object
2. add a column
3. add a new row
4. edit attributes
5. edit geometry

sf3 <- editAttributes(sf2)

mapview::mapview(sf3)

Add features or rows without using New Row button

Use this option when features don't share any attributes

1. Launch app with sf object
2. add geometry feature without clicking Row button
3. edit attributes

sf4 <- editAttributes(sf2)

mapview::mapview(sf4)

Delete Existing Features

1. Launch app with sf object
2. click on the bin icon
3. select feature to delete

sf5 <- editAttributes(sf2)

mapview::mapview(sf5)

Create object with multiple geometry types

1. Launch app with no input
2. add geometry features without clicking Row button

sf6 <- editAttributes(zoomto = 'Montana')

mapview::mapview(sf6)

Edit object with multiple geometry types

Editing existing features from a multi-geometry input does not work with lines or points.

1. Launch app with previous input
2. edit geometry features

sf7 <- editAttributes(sf6)

mapview::mapview(sf7)

Hide New Column Form

1. Launch app with previous input
2. check the new column form is missing

sf8 <- editAttributes(sf7, col_add = FALSE)

mapview::mapview(sf8)

Don't Reset New Row form after click

Use this option when creating features that have common attributes

1. Launch app with previous input
2. add rows using form (fields should not clear after button click)

sf9 <- editAttributes(sf8, reset = FALSE)

mapview::mapview(sf9)

mapedit documentation built on June 8, 2025, 1:29 p.m.