I'm attempting to use JsPDF and HTML2Canvas to create a downloadable PDF file. I'm using AngularJs. The HTML content contains several long tables that are sometimes 3-4x the width of the PDF. Although the PDF ends up close to perfect, I've run into several defects:
Table columns occasionally don't display their respective values in the PDF (partial or no data)
If a date field is not provided, the table in the PDF defaults to 12/31/9999
A single row table shifts all its values left by one. As a result, there is no record/ID and the last column value is undefined.
I tried messing around with margins and content width. Unfortunately, only margin.top/left have any effect.
This is the code I've used:
$scope.savePdfSample = function(value) {
html2canvas(document.body,{
onrendered:function(canvas){
var doc = new jsPDF('l', 'pt', 'letter'),
source = $("#template_invoice")[0], //not sure what this does
margins = {
top: 40,
bottom: 40,
left: 40,
right:40,
width: 1000,
};
doc.fromHTML(
$("#ccsReport1").html(),
margins.left,
margins.top,
{
'width': margins.width,
},
function(dispose) {
doc.save('CCS Case Details.pdf');
},
margins
);
}
});
};
I've tried messing around with the jspdf.debug.js file, but I haven't found a solution yet. I'd appreciate anyone pointing me in the right direction. Thank you.
Related
Is there a way to fix data splitting between two pages (I've posted the image of the issue below). I'm passing a template to doc.html() and im using jspdf to generate a pdf file. Everything is displayed as it should except the table data - the table data splits between two pages (see image below).
This is the part of the code to generate the pdf. HTMLTemplate is html template im passing to it (divs and tables with data)
let doc = new jsPDF("p", "pt", "a4");
doc.html(renderToString(<HTMLTemplate />), {
margin: [20, 0, 20, 0]
async callback(doc) {
// save the document as a PDF
doc.save(name_pdf_file, { returnPromise: true }).then(SetValue()); // Ignore this
},
});
I have an ag-grid table (Enterprise version: 22.1.0) which is grouped using autoGroupColumnDef property. The grouping is dependent on the table's data and the data loads on a button click. I need to update the autoGroupColumnDef property's field name (_this.colName in the below code) after the page is loaded, right before loading the data.
Table's grid options:
_this.gridOptions = {
defaultColDef: {
sortable: true,
resizable: true,
filter: true
},
columnDefs: _this.columnDefs,
rowData: [],
enableRangeSelection: true,
autoGroupColumnDef: {
headerName: "Sector",
field: _this.colName,
cellRendererParams: {
suppressCount: true
},
tooltipValueGetter: function(params) {
return _this.tooltipVal
}
},
suppressAggFuncInHeader: true,
enableBrowserTooltips: true
};
I update the variable _this.colName before setting data to the grid. I have tried the following options and none of them worked for me:
_this.gridOptions.api.refreshClientSideRowModel('group');
_this.gridOptions.api.refreshCells();
_this.gridOptions.autoGroupColumnDef.field = 'Column's Name'
Any help would be appreciated!
There is a good workaround for this. You can set autoGroupColumnDef, then remove and readd all row groupings. It will redraw the group column with the new name.
gridOptions.autoGroupColumnDef.headerName = 'new_name';
// Get current groupings
var colstate = gridOptions.columnApi.getColumnState();
var colstateclear = gridOptions.columnApi.getColumnState();
// Clear groupings
var x = 0, xcount = colstateclear.length;
while ( x < xcount ) {
colstateclear[x].rowGroupIndex = null;
x += 1;
}
gridOptions.columnApi.setColumnState(colstateclear);
// Reset groupings
gridOptions.columnApi.setColumnState(colstate);
I contacted ag-grid support and apparently this is a bug and they have it in their backlog with no ETA available for now. A workaround they provided was to use: https://www.ag-grid.com/javascript-grid-grouping/#showRowGroup.
This is not really a good workaround because the grouped columns are separated and makes the page feel cramped. Also there are some look and feel issues that keep popping up (Eg: empty space added before each column that increases with each grouped column. ie second column has 1 cm added before it, third column has 2 cm added before it and so on. I guess this was added to bring the grouped look in the group column but you wouldn't expect this behavior when the columns are separated.)
ag-grid's backlog ID for the ticket: AG-3359 - Allow the autoGroupColumn to be used in the API calls for columns, at the moment there is no way to dynamically change it after creation. (ie, setColumnDefs …)
Link to track the progress: https://www.ag-grid.com/ag-grid-pipeline/
there is a straight forward method to update the autoGroupColumnDef object and its properties with setAutoGroupColumnDef
this.gridOptions.api.setAutoGroupColumnDef(<ColDef>{
...this.gridOptions.autoGroupColumnDef, // preserve the other settings except the ones you need to change
minWidth: 500
})
if any problems with the spread operator,
do it manually:
this.gridOptions.api.setAutoGroupColumnDef(<ColDef>{
// ...this.gridOptions.autoGroupColumnDef, // preserve the other settings except the ones you need to change
headerName: this.gridOptions.autoGroupColumnDef.headerName,
minWidth: 500
})
and one more thing, add this if you have any visual bugs, like: header row gets resized but bellow rows stays the same as previus state, so the refresh of model is required:
this.gridOptions.api.refreshClientSideRowModel();
this refresh is not ideal solution, because it refreshes everything, so you will loose expanded levels for example, still no clue how to preserve all settings.
https://angulargrid.com/angular-grid/client-side-model/#refreshing-the-client-side-model
and best solution for now is tu use:
this.gridOptions.api.redrawRows();
it keeps the rows expanded if are, checkbox selected if is.
I am stuck with http://www.amcharts.com/demos/multiple-data-sets/#theme-none, the creators of the graphic just put a random numbers to fill it, but I would like to load a CSV file which they have a plugin http://www.amcharts.com/demos/stock-
However, the second graphic is only for
"Stock" and financial purposses I would like to have the first one populated with a cvs file so I can compare more than 2 datasets.
Can someone help me? I will really appreciate it.
I need to read a little bit more, but I figured it out and Amcharts provides a lot of guide they are really nice and patience.
Below it's a pastie where you can find the whole solution.
this is a brief explanation:
{
title: 'Title',
fieldMappings: [ { // here you set the fields your chart will display
fromField: 'col1', // col1 because my csv has only 3 columns the first one contains the data
toField: 'value' // shows the value
}, {
fromField: 'col2', // this is the volume to display under the main graphic and that data is on column2
toField: 'volume' //
} ],
categoryField: "col0", // this is the category which it's display in this case i am using dates so it will display dates and my dates are in column 0 or column "A" in my csv file.
dataLoader: { / this is the plugin
url: "data/data2.csv", // the address
showCurtain: true, // widgets of the pluging
showErrors: true, // if there is an error loading amcharts will tell you
delimeter:"\t", // my csv is not delimited by "," but tabs.
format: "csv",
reverse:true // this is what sort of order you have your data, in my case from Z to A or major to minor.
}
here it't the code:
http://pastie.org/private/bwhvpnb6j8o1jv86cfsg
Am new to angularjs/googlecharts and learning on the job. I've the following code in my controller which renders the piechart initially and has no issues.
There is a slider directive, which when changed (basically a date range slider), should update the columnchart with new data. But I don't know how to update the piechart data. I do get the new data from the backend without any problems though.
Here is the initialization code in controller:
$scope.piechart = {};
$scope.piechart.type ='PieChart';
piechartData = response.data.piechart;
var piechartoptions = {
'min-width':800,
'max-width':320,
'is3D':true,
'pieSliceText': 'label',
'pieSliceTextStyle': {fontSize: 10},
'chartArea' : { left: 30, top: 60 },
'backgroundColor': {fill:'transparent'},
'legend': {'textStyle':{'color': 'white',
'fontSize': 12},
'position': "top",
'maxLines':10,
'alignment':"start"},
'height':500
};
$scope.piechart.data = new google.visualization.DataTable(piechartData);
$scope.piechart.options = piechartoptions;
$scope.piechart.formatters = {};
In the directive (which is used in the html that the above controller's scope resides in), I've access to the chart like the following:
scope.$parent.piechart
So in a very naive way i did this but to no avail:
scope.$parent.piechart.data = new google.visualization.DataTable(response.data.piechart)
TIA for all the help.
I bumped into this issue today. An easy quick fix is to simply write
this.chartData = Object.assign([], this.chartData) to reassign to the exposed dataset property into your component so it triggers change detection.
More information from this issue in a different library:
valor-software/ng2-charts#959 (comment)
Hope this helps weary travellers :)
To achieve this you need to create watch on your slider model so when it gets change you need to update your pie chart model so it'll automatically update.
Watch
$scope.$watch('sliderModel',function(n,o) {
// update your new pie chart data here, I think you need to update below model only
$scope.piechart.data = new google.visualization.DataTable(piechartData);
}
It just an example. You have to update it with new data for pie chart.
Proper Angular way to use google chart
You should use google-chart directives to plot pie chart so this kind of problems will be solved automatically.
Have a look here - Angular-google-chart
I am using Google's Street View Static Image API. It works great, but I am wondering if it is possible to get meta data for the images I am saving, specifically the date. Is there anyway to know the date of the static image?
Thanks,
Lee
Yes, you can get the image date using the Google Maps Street View Service in JavaScript.
Briefly, you would need to go through the usual setup steps to get Google Maps working on your page, then you would do something akin to:
var sv = new google.maps.StreetViewService();
var berkeley = new google.maps.LatLng(37.869085,-122.254775);
sv.getPanoramaByLocation(berkeley, 50, function(data) {
console.log(data.imageDate);
});
data.imageDate will contain the date in YYYY-MM format.
You can use StreetViewService's both getPanoramaById and getPanoramaByLocation methods to obtain this data. Please see here.
var panoramaOptions = {
position: streetViewLocation,
pov: {
heading: 0,
pitch: 5,
zoom: 1
},
visible: true,
addressControl: false,
imageDateControl:true
};