Skip to main content

Grids & Columns

The POI, Constraints, and Harmers grids are configured in configuration.json — which columns are displayed, in which order, and how wide. Use configuration-schema.json with your favorite editor to validate your changes.

Point of Interconnection grid​

Inside configuration.json is an array property called "pois". Inside each object is an object property called "columns" composed of three properties: "columnName", "fieldName", and "columnWidth". The "fieldName" is the name of one of the properties associated with a bus (e.g. rating). This is where you define which properties of a bus are displayed in the POI grid, in which order, and the width of each column.

Setting the column widths​

The width of a column can either be an absolute number, as a string, or a relative width using the "number*" (number-star) format (e.g., 2*). The star format specifies the width relative to the other columns: if column 1 is 1* and another column is 3*, the second column will be 3 times wider than the first. Relative sizes are calculated after all absolute pixel sizes are accounted for. The same format applies to all three grids.

Constraints grid​

The Constraints grid is defined by the "flowgates" array property, with the same "columns" structure. The "fieldName" is one of the properties associated with a constraint (e.g. mon), plus some properties added by GIPS (e.g., loadingafter).

Hiding constraints

Constraints below a specified loading can be hidden from the grid via the Settings dialog (gear icon above the map). In GIPS Desktop, changes are saved in configuration.json; in GIPS Lite and Pro, these settings are saved in the browser's local storage.

Harmers grid​

The Harmers grid is defined by an object called "harmersGrid" — you may have to add this object yourself. It contains the same "columns" structure, where "fieldName" is one of the properties associated with a harmer (e.g. rating), plus properties added by GIPS (e.g., loadingafter).