During the process of developing custom ArcView 2.1 applications for municipal clients, certain limitations have been encountered. This paper will address some alternative approaches to deal with these challenging issues. Topics to be examined include customizing layouts, automating database queries, and retrieving attribute data using Vtabs and Ftabs. Development of custom GUIs is also discussed. Other limitations relating to porting applications to different platforms will be addressed. The issues presented will help other developers in their efforts to produce customized ArcView applications.
Graphics the Hard Way: Time Series in Avenue In environmental information systems one of the most important charting features is the ability to visualise temporal trends in the data material. Time series plots, however, are not available in ArcView. This paper presents a number of Avenue scripts to automatically scale and display time series in the ArcView environment. In addition to this, the process of optimising the scripts for very large data sets is outlined.
ArcView Version 2 provides great GIS graphics and table management functionality. The View content can be converted into a map directly by its Layout. However, it still needs some work to produce a quick map automatically. The layout template will not work properly if the template is applied to the views of different height and width ratios. Furthermore, it is not very easy to print out map titles or other text symbols, with appropriate positioning and spacing, without manual correction. The main topics of this paper are how to let a view be fixed within a specified page area, how to break a long text line into several lines to be fitted in a specified legend area and center these lines, and to make an appropriate scale bar. This paper discusses how to automate the map making process by utilizing a number of custom function scripts.