deCarta, maker of geospatial software for location-based apps, has raised $6.2 million of an expected $10.2 million in a fourth round of funding, according to a filing with the SEC. The San Jose-based company develops a platform that powers local search and mapping apps. The funding comes at the end of a busy week for location-based services, including the launch of location check-in feature Facebook Places and Facebook’s acquisition of location-based startup Hot Potato. deCarta last raised a $35 million round in 2008 from investors including Norwest Venture Partners, T-Mobile Venture Fund, TransLink Capital, Mobius Venture Capital and Cardinal Venture Capital.